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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
FilterMethodAnalyzer.java | 85% | 88.5% | 100% | 87.5% |
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// Copyright 2004 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.hivemind.lib.pipeline;
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import org.apache.hivemind.service.MethodSignature;
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/**
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* Used by {@link org.apache.hivemind.lib.pipeline.PipelineAssembler}
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* to analyze service interface methods against filter interface methods
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* to find the position of the extra service parameter (in the filter method).
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*
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* @author Howard Lewis Ship
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*/
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class FilterMethodAnalyzer
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{ |
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private Class _serviceInterface;
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FilterMethodAnalyzer(Class serviceInterface) |
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{ |
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_serviceInterface = serviceInterface; |
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} |
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public int findServiceInterfacePosition(MethodSignature ms, MethodSignature fms) |
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{ |
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if (ms.getReturnType() != fms.getReturnType())
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return -1;
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if (ms.getName() != fms.getName())
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return -1;
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Class[] filterParameters = fms.getParameterTypes(); |
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int filterParameterCount = filterParameters.length;
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Class[] serviceParameters = ms.getParameterTypes(); |
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if (filterParameterCount != (serviceParameters.length + 1))
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return -1;
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// TODO: check compatible exceptions!
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// This needs work; it assumes the first occurance of the service interface
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// in the filter interface method signature is the right match. That will suit
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// most of the time.
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boolean found = false; |
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int result = -1;
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for (int i = 0; i < filterParameterCount; i++) |
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{ |
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if (filterParameters[i] == _serviceInterface)
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{ |
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result = i; |
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found = true;
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break;
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} |
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} |
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if (!found)
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return -1;
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// Check that all the parameters before and after the service interface still
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// match.
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for (int i = 0; i < result; i++) |
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{ |
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if (filterParameters[i] != serviceParameters[i])
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return -1;
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} |
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for (int i = result + 1; i < filterParameterCount; i++) |
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{ |
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if (filterParameters[i] != serviceParameters[i - 1])
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return -1;
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} |
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return result;
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} |
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} |
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