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package org.apache.commons.configuration; |
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import java.math.BigDecimal; |
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import java.math.BigInteger; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.NoSuchElementException; |
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import java.util.Properties; |
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import org.apache.commons.collections.Predicate; |
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import org.apache.commons.collections.iterators.FilterIterator; |
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import org.apache.commons.lang.BooleanUtils; |
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public abstract class AbstractConfiguration implements Configuration |
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{ |
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protected static final String START_TOKEN = "${"; |
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protected static final String END_TOKEN = "}"; |
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private static char DELIMITER = ','; |
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private boolean throwExceptionOnMissing = false; |
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public static void setDelimiter(char delimiter) |
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{ |
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AbstractConfiguration.DELIMITER = delimiter; |
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} |
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public static char getDelimiter() |
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{ |
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return AbstractConfiguration.DELIMITER; |
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} |
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public void setThrowExceptionOnMissing(boolean throwExceptionOnMissing) |
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{ |
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this.throwExceptionOnMissing = throwExceptionOnMissing; |
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} |
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public boolean isThrowExceptionOnMissing() |
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{ |
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return throwExceptionOnMissing; |
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} |
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public void addProperty(String key, Object value) |
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{ |
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Iterator it = PropertyConverter.toIterator(value, DELIMITER); |
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while (it.hasNext()) |
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{ |
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addPropertyDirect(key, it.next()); |
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} |
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} |
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protected abstract void addPropertyDirect(String key, Object obj); |
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protected String interpolate(String base) |
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{ |
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return interpolateHelper(base, null); |
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} |
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protected String interpolateHelper(String base, List priorVariables) |
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{ |
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if (base == null) |
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{ |
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return null; |
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} |
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if (priorVariables == null) |
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{ |
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priorVariables = new ArrayList(); |
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priorVariables.add(base); |
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} |
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int begin = -1; |
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int end = -1; |
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int prec = 0 - END_TOKEN.length(); |
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String variable = null; |
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StringBuffer result = new StringBuffer(); |
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while (((begin = base.indexOf(START_TOKEN, prec + END_TOKEN.length())) > -1) |
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&& ((end = base.indexOf(END_TOKEN, begin)) > -1)) |
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{ |
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result.append(base.substring(prec + END_TOKEN.length(), begin)); |
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variable = base.substring(begin + START_TOKEN.length(), end); |
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if (priorVariables.contains(variable)) |
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{ |
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String initialBase = priorVariables.remove(0).toString(); |
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priorVariables.add(variable); |
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StringBuffer priorVariableSb = new StringBuffer(); |
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for (Iterator it = priorVariables.iterator(); it.hasNext();) |
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{ |
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priorVariableSb.append(it.next()); |
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if (it.hasNext()) |
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{ |
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priorVariableSb.append("->"); |
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} |
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} |
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throw new IllegalStateException("infinite loop in property interpolation of " + initialBase + ": " |
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+ priorVariableSb.toString()); |
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} |
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else |
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{ |
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priorVariables.add(variable); |
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} |
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Object value = getProperty(variable); |
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if (value != null) |
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{ |
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result.append(interpolateHelper(value.toString(), priorVariables)); |
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priorVariables.remove(priorVariables.size() - 1); |
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} |
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else |
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{ |
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result.append(START_TOKEN).append(variable).append(END_TOKEN); |
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} |
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prec = end; |
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} |
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result.append(base.substring(prec + END_TOKEN.length(), base.length())); |
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return result.toString(); |
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} |
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public Configuration subset(String prefix) |
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{ |
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return new SubsetConfiguration(this, prefix, "."); |
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} |
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public abstract boolean isEmpty(); |
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public abstract boolean containsKey(String key); |
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public void setProperty(String key, Object value) |
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{ |
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clearProperty(key); |
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addProperty(key, value); |
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} |
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public abstract void clearProperty(String key); |
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public void clear() |
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{ |
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Iterator it = getKeys(); |
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while (it.hasNext()) |
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{ |
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String key = (String) it.next(); |
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it.remove(); |
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if (containsKey(key)) |
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{ |
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clearProperty(key); |
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} |
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} |
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} |
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public abstract Iterator getKeys(); |
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public Iterator getKeys(final String prefix) |
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{ |
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return new FilterIterator(getKeys(), class="keyword">new Predicate() |
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{ |
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public boolean evaluate(Object obj) |
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{ |
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String key = (String) obj; |
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return key.startsWith(prefix + ".") || key.equals(prefix); |
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} |
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}); |
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} |
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public Properties getProperties(String key) |
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{ |
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return getProperties(key, null); |
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} |
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public Properties getProperties(String key, Properties defaults) |
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{ |
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String[] tokens = getStringArray(key); |
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Properties props = defaults == null ? new Properties() : class="keyword">new Properties(defaults); |
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for (int i = 0; i < tokens.length; i++) |
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{ |
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String token = tokens[i]; |
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int equalSign = token.indexOf('='); |
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if (equalSign > 0) |
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{ |
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String pkey = token.substring(0, equalSign).trim(); |
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String pvalue = token.substring(equalSign + 1).trim(); |
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props.put(pkey, pvalue); |
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} |
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else if (tokens.length == 1 && "".equals(token)) |
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{ |
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break; |
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} |
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else |
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{ |
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throw new IllegalArgumentException('\'' + token + "' does not contain an equals sign"); |
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} |
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} |
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return props; |
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} |
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public boolean getBoolean(String key) |
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{ |
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Boolean b = getBoolean(key, null); |
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if (b != null) |
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{ |
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return b.booleanValue(); |
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} |
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else |
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{ |
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throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
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} |
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} |
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public boolean getBoolean(String key, class="keyword">boolean defaultValue) |
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{ |
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return getBoolean(key, BooleanUtils.toBooleanObject(defaultValue)).booleanValue(); |
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} |
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public Boolean getBoolean(String key, Boolean defaultValue) |
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{ |
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Object value = resolveContainerStore(key); |
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if (value == null) |
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{ |
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return defaultValue; |
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} |
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else |
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{ |
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try |
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{ |
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return PropertyConverter.toBoolean(value); |
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} |
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catch (ConversionException e) |
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{ |
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throw new ConversionException('\'' + key + "' doesn't map to a Boolean object", e); |
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} |
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} |
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} |
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public byte getByte(String key) |
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{ |
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Byte b = getByte(key, null); |
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if (b != null) |
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{ |
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return b.byteValue(); |
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} |
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else |
412 |
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{ |
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throw new NoSuchElementException('\'' + key + " doesn't map to an existing object"); |
414 |
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} |
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} |
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418 |
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419 |
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420 |
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public byte getByte(String key, byte defaultValue) |
421 |
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{ |
422 |
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return getByte(key, new Byte(defaultValue)).byteValue(); |
423 |
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} |
424 |
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425 |
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426 |
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427 |
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428 |
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public Byte getByte(String key, Byte defaultValue) |
429 |
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{ |
430 |
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Object value = resolveContainerStore(key); |
431 |
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|
432 |
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if (value == null) |
433 |
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{ |
434 |
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return defaultValue; |
435 |
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} |
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else |
437 |
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{ |
438 |
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try |
439 |
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{ |
440 |
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return PropertyConverter.toByte(value); |
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} |
442 |
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catch (ConversionException e) |
443 |
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{ |
444 |
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throw new ConversionException('\'' + key + "' doesn't map to a Byte object", e); |
445 |
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} |
446 |
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} |
447 |
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} |
448 |
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449 |
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450 |
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451 |
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452 |
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public double getDouble(String key) |
453 |
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{ |
454 |
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Double d = getDouble(key, null); |
455 |
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if (d != null) |
456 |
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{ |
457 |
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return d.doubleValue(); |
458 |
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} |
459 |
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else |
460 |
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{ |
461 |
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throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
462 |
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} |
463 |
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} |
464 |
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466 |
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467 |
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468 |
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public double getDouble(String key, class="keyword">double defaultValue) |
469 |
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{ |
470 |
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return getDouble(key, new Double(defaultValue)).doubleValue(); |
471 |
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} |
472 |
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473 |
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474 |
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475 |
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476 |
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public Double getDouble(String key, Double defaultValue) |
477 |
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{ |
478 |
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Object value = resolveContainerStore(key); |
479 |
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|
480 |
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if (value == null) |
481 |
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{ |
482 |
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return defaultValue; |
483 |
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} |
484 |
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else |
485 |
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{ |
486 |
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try |
487 |
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{ |
488 |
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return PropertyConverter.toDouble(value); |
489 |
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} |
490 |
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catch (ConversionException e) |
491 |
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{ |
492 |
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throw new ConversionException('\'' + key + "' doesn't map to a Double object", e); |
493 |
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} |
494 |
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} |
495 |
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} |
496 |
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497 |
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498 |
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499 |
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500 |
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public float getFloat(String key) |
501 |
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{ |
502 |
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Float f = getFloat(key, null); |
503 |
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if (f != null) |
504 |
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{ |
505 |
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return f.floatValue(); |
506 |
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} |
507 |
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else |
508 |
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{ |
509 |
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throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
510 |
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} |
511 |
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} |
512 |
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513 |
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514 |
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515 |
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516 |
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public float getFloat(String key, class="keyword">float defaultValue) |
517 |
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{ |
518 |
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return getFloat(key, new Float(defaultValue)).floatValue(); |
519 |
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} |
520 |
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521 |
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522 |
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523 |
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524 |
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public Float getFloat(String key, Float defaultValue) |
525 |
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{ |
526 |
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Object value = resolveContainerStore(key); |
527 |
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528 |
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if (value == null) |
529 |
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{ |
530 |
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return defaultValue; |
531 |
|
} |
532 |
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else |
533 |
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{ |
534 |
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try |
535 |
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{ |
536 |
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return PropertyConverter.toFloat(value); |
537 |
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} |
538 |
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catch (ConversionException e) |
539 |
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{ |
540 |
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throw new ConversionException('\'' + key + "' doesn't map to a Float object", e); |
541 |
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} |
542 |
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} |
543 |
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} |
544 |
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545 |
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546 |
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547 |
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|
548 |
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public int getInt(String key) |
549 |
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{ |
550 |
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Integer i = getInteger(key, null); |
551 |
|
if (i != null) |
552 |
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{ |
553 |
|
return i.intValue(); |
554 |
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} |
555 |
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else |
556 |
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{ |
557 |
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throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
558 |
|
} |
559 |
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} |
560 |
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|
561 |
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562 |
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|
563 |
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|
564 |
|
public int getInt(String key, class="keyword">int defaultValue) |
565 |
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{ |
566 |
|
Integer i = getInteger(key, null); |
567 |
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|
568 |
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if (i == null) |
569 |
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{ |
570 |
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return defaultValue; |
571 |
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} |
572 |
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573 |
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return i.intValue(); |
574 |
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} |
575 |
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|
576 |
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577 |
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|
578 |
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|
579 |
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public Integer getInteger(String key, Integer defaultValue) |
580 |
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{ |
581 |
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Object value = resolveContainerStore(key); |
582 |
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|
583 |
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if (value == null) |
584 |
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{ |
585 |
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return defaultValue; |
586 |
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} |
587 |
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else |
588 |
|
{ |
589 |
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try |
590 |
|
{ |
591 |
|
return PropertyConverter.toInteger(value); |
592 |
|
} |
593 |
|
catch (ConversionException e) |
594 |
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{ |
595 |
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throw new ConversionException('\'' + key + "' doesn't map to an Integer object", e); |
596 |
|
} |
597 |
|
} |
598 |
|
} |
599 |
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|
600 |
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|
601 |
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|
602 |
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|
603 |
|
public long getLong(String key) |
604 |
|
{ |
605 |
|
Long l = getLong(key, null); |
606 |
|
if (l != null) |
607 |
|
{ |
608 |
|
return l.longValue(); |
609 |
|
} |
610 |
|
else |
611 |
|
{ |
612 |
|
throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
613 |
|
} |
614 |
|
} |
615 |
|
|
616 |
|
|
617 |
|
|
618 |
|
|
619 |
|
public long getLong(String key, class="keyword">long defaultValue) |
620 |
|
{ |
621 |
|
return getLong(key, new Long(defaultValue)).longValue(); |
622 |
|
} |
623 |
|
|
624 |
|
|
625 |
|
|
626 |
|
|
627 |
|
public Long getLong(String key, Long defaultValue) |
628 |
|
{ |
629 |
|
Object value = resolveContainerStore(key); |
630 |
|
|
631 |
|
if (value == null) |
632 |
|
{ |
633 |
|
return defaultValue; |
634 |
|
} |
635 |
|
else |
636 |
|
{ |
637 |
|
try |
638 |
|
{ |
639 |
|
return PropertyConverter.toLong(value); |
640 |
|
} |
641 |
|
catch (ConversionException e) |
642 |
|
{ |
643 |
|
throw new ConversionException('\'' + key + "' doesn't map to a Long object", e); |
644 |
|
} |
645 |
|
} |
646 |
|
} |
647 |
|
|
648 |
|
|
649 |
|
|
650 |
|
|
651 |
|
public short getShort(String key) |
652 |
|
{ |
653 |
|
Short s = getShort(key, null); |
654 |
|
if (s != null) |
655 |
|
{ |
656 |
|
return s.shortValue(); |
657 |
|
} |
658 |
|
else |
659 |
|
{ |
660 |
|
throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
661 |
|
} |
662 |
|
} |
663 |
|
|
664 |
|
|
665 |
|
|
666 |
|
|
667 |
|
public short getShort(String key, class="keyword">short defaultValue) |
668 |
|
{ |
669 |
|
return getShort(key, new Short(defaultValue)).shortValue(); |
670 |
|
} |
671 |
|
|
672 |
|
|
673 |
|
|
674 |
|
|
675 |
|
public Short getShort(String key, Short defaultValue) |
676 |
|
{ |
677 |
|
Object value = resolveContainerStore(key); |
678 |
|
|
679 |
|
if (value == null) |
680 |
|
{ |
681 |
|
return defaultValue; |
682 |
|
} |
683 |
|
else |
684 |
|
{ |
685 |
|
try |
686 |
|
{ |
687 |
|
return PropertyConverter.toShort(value); |
688 |
|
} |
689 |
|
catch (ConversionException e) |
690 |
|
{ |
691 |
|
throw new ConversionException('\'' + key + "' doesn't map to a Short object", e); |
692 |
|
} |
693 |
|
} |
694 |
|
} |
695 |
|
|
696 |
|
|
697 |
|
|
698 |
|
|
699 |
|
public BigDecimal getBigDecimal(String key) |
700 |
|
{ |
701 |
|
BigDecimal number = getBigDecimal(key, null); |
702 |
|
if (number != null) |
703 |
|
{ |
704 |
|
return number; |
705 |
|
} |
706 |
|
else if (isThrowExceptionOnMissing()) |
707 |
|
{ |
708 |
|
throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
709 |
|
} |
710 |
|
else |
711 |
|
{ |
712 |
|
return null; |
713 |
|
} |
714 |
|
} |
715 |
|
|
716 |
|
|
717 |
|
|
718 |
|
|
719 |
|
public BigDecimal getBigDecimal(String key, BigDecimal defaultValue) |
720 |
|
{ |
721 |
|
Object value = resolveContainerStore(key); |
722 |
|
|
723 |
|
if (value == null) |
724 |
|
{ |
725 |
|
return defaultValue; |
726 |
|
} |
727 |
|
else |
728 |
|
{ |
729 |
|
try |
730 |
|
{ |
731 |
|
return PropertyConverter.toBigDecimal(value); |
732 |
|
} |
733 |
|
catch (ConversionException e) |
734 |
|
{ |
735 |
|
throw new ConversionException('\'' + key + "' doesn't map to a BigDecimal object", e); |
736 |
|
} |
737 |
|
} |
738 |
|
} |
739 |
|
|
740 |
|
|
741 |
|
|
742 |
|
|
743 |
|
public BigInteger getBigInteger(String key) |
744 |
|
{ |
745 |
|
BigInteger number = getBigInteger(key, null); |
746 |
|
if (number != null) |
747 |
|
{ |
748 |
|
return number; |
749 |
|
} |
750 |
|
else if (isThrowExceptionOnMissing()) |
751 |
|
{ |
752 |
|
throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
753 |
|
} |
754 |
|
else |
755 |
|
{ |
756 |
|
return null; |
757 |
|
} |
758 |
|
} |
759 |
|
|
760 |
|
|
761 |
|
|
762 |
|
|
763 |
|
public BigInteger getBigInteger(String key, BigInteger defaultValue) |
764 |
|
{ |
765 |
|
Object value = resolveContainerStore(key); |
766 |
|
|
767 |
|
if (value == null) |
768 |
|
{ |
769 |
|
return defaultValue; |
770 |
|
} |
771 |
|
else |
772 |
|
{ |
773 |
|
try |
774 |
|
{ |
775 |
|
return PropertyConverter.toBigInteger(value); |
776 |
|
} |
777 |
|
catch (ConversionException e) |
778 |
|
{ |
779 |
|
throw new ConversionException('\'' + key + "' doesn't map to a BigDecimal object", e); |
780 |
|
} |
781 |
|
} |
782 |
|
} |
783 |
|
|
784 |
|
|
785 |
|
|
786 |
|
|
787 |
|
public String getString(String key) |
788 |
|
{ |
789 |
|
String s = getString(key, null); |
790 |
|
if (s != null) |
791 |
|
{ |
792 |
|
return s; |
793 |
|
} |
794 |
|
else if (isThrowExceptionOnMissing()) |
795 |
|
{ |
796 |
|
throw new NoSuchElementException('\'' + key + "' doesn't map to an existing object"); |
797 |
|
} |
798 |
|
else |
799 |
|
{ |
800 |
|
return null; |
801 |
|
} |
802 |
|
} |
803 |
|
|
804 |
|
|
805 |
|
|
806 |
|
|
807 |
|
public String getString(String key, String defaultValue) |
808 |
|
{ |
809 |
|
Object value = resolveContainerStore(key); |
810 |
|
|
811 |
|
if (value instanceof String) |
812 |
|
{ |
813 |
|
return interpolate((String) value); |
814 |
|
} |
815 |
|
else if (value == null) |
816 |
|
{ |
817 |
|
return interpolate(defaultValue); |
818 |
|
} |
819 |
|
else |
820 |
|
{ |
821 |
|
throw new ConversionException('\'' + key + "' doesn't map to a String object"); |
822 |
|
} |
823 |
|
} |
824 |
|
|
825 |
|
|
826 |
|
|
827 |
|
|
828 |
|
public String[] getStringArray(String key) |
829 |
|
{ |
830 |
|
Object value = getProperty(key); |
831 |
|
|
832 |
|
String[] array; |
833 |
|
|
834 |
|
if (value instanceof String) |
835 |
|
{ |
836 |
|
array = new String[1]; |
837 |
|
|
838 |
|
array[0] = interpolate((String) value); |
839 |
|
} |
840 |
|
else if (value instanceof List) |
841 |
|
{ |
842 |
|
List list = (List) value; |
843 |
|
array = new String[list.size()]; |
844 |
|
|
845 |
|
for (int i = 0; i < array.length; i++) |
846 |
|
{ |
847 |
|
array[i] = interpolate((String) list.get(i)); |
848 |
|
} |
849 |
|
} |
850 |
|
else if (value == null) |
851 |
|
{ |
852 |
|
array = new String[0]; |
853 |
|
} |
854 |
|
else |
855 |
|
{ |
856 |
|
throw new ConversionException('\'' + key + "' doesn't map to a String/List object"); |
857 |
|
} |
858 |
|
return array; |
859 |
|
} |
860 |
|
|
861 |
|
|
862 |
|
|
863 |
|
|
864 |
|
public List getList(String key) |
865 |
|
{ |
866 |
|
return getList(key, new ArrayList()); |
867 |
|
} |
868 |
|
|
869 |
|
|
870 |
|
|
871 |
|
|
872 |
|
public List getList(String key, List defaultValue) |
873 |
|
{ |
874 |
|
Object value = getProperty(key); |
875 |
|
List list = null; |
876 |
|
|
877 |
|
if (value instanceof String) |
878 |
|
{ |
879 |
|
list = new ArrayList(1); |
880 |
|
list.add(value); |
881 |
|
} |
882 |
|
else if (value instanceof List) |
883 |
|
{ |
884 |
|
list = (List) value; |
885 |
|
} |
886 |
|
else if (value == null) |
887 |
|
{ |
888 |
|
list = defaultValue; |
889 |
|
} |
890 |
|
else |
891 |
|
{ |
892 |
|
throw new ConversionException('\'' + key + "' doesn't map to a List object: " + value + ", a " |
893 |
|
+ value.getClass().getName()); |
894 |
|
} |
895 |
|
return list; |
896 |
|
} |
897 |
|
|
898 |
|
|
899 |
|
|
900 |
|
|
901 |
|
|
902 |
|
|
903 |
|
|
904 |
|
|
905 |
|
|
906 |
|
protected Object resolveContainerStore(String key) |
907 |
|
{ |
908 |
|
Object value = getProperty(key); |
909 |
|
if (value != null) |
910 |
|
{ |
911 |
|
if (value instanceof List) |
912 |
|
{ |
913 |
|
List list = (List) value; |
914 |
|
value = list.isEmpty() ? null : list.get(0); |
915 |
|
} |
916 |
|
else if (value instanceof Object[]) |
917 |
|
{ |
918 |
|
Object[] array = (Object[]) value; |
919 |
|
value = array.length == 0 ? null : array[0]; |
920 |
|
} |
921 |
|
else if (value instanceof boolean[]) |
922 |
|
{ |
923 |
|
boolean[] array = (class="keyword">boolean[]) value; |
924 |
|
value = array.length == 0 ? null : new Boolean(array[0]); |
925 |
|
} |
926 |
|
else if (value instanceof byte[]) |
927 |
|
{ |
928 |
|
byte[] array = (byte[]) value; |
929 |
|
value = array.length == 0 ? null : new Byte(array[0]); |
930 |
|
} |
931 |
|
else if (value instanceof short[]) |
932 |
|
{ |
933 |
|
short[] array = (class="keyword">short[]) value; |
934 |
|
value = array.length == 0 ? null : new Short(array[0]); |
935 |
|
} |
936 |
|
else if (value instanceof int[]) |
937 |
|
{ |
938 |
|
int[] array = (class="keyword">int[]) value; |
939 |
|
value = array.length == 0 ? null : new Integer(array[0]); |
940 |
|
} |
941 |
|
else if (value instanceof long[]) |
942 |
|
{ |
943 |
|
long[] array = (class="keyword">long[]) value; |
944 |
|
value = array.length == 0 ? null : new Long(array[0]); |
945 |
|
} |
946 |
|
else if (value instanceof float[]) |
947 |
|
{ |
948 |
|
float[] array = (class="keyword">float[]) value; |
949 |
|
value = array.length == 0 ? null : new Float(array[0]); |
950 |
|
} |
951 |
|
else if (value instanceof double[]) |
952 |
|
{ |
953 |
|
double[] array = (class="keyword">double[]) value; |
954 |
|
value = array.length == 0 ? null : new Double(array[0]); |
955 |
|
} |
956 |
|
} |
957 |
|
|
958 |
|
return value; |
959 |
|
} |
960 |
|
|
961 |
|
} |