001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017 package org.apache.logging.log4j.core.appender.db.nosql.couch; 018 019 import java.util.Map; 020 021 import org.apache.logging.log4j.Logger; 022 import org.apache.logging.log4j.core.appender.db.nosql.NoSQLConnection; 023 import org.apache.logging.log4j.core.appender.db.nosql.NoSQLObject; 024 import org.apache.logging.log4j.status.StatusLogger; 025 import org.lightcouch.CouchDbClient; 026 import org.lightcouch.Response; 027 028 /** 029 * The Apache CouchDB implementation of {@link NoSQLConnection}. 030 */ 031 public final class CouchDBConnection implements NoSQLConnection<Map<String, Object>, CouchDBObject> { 032 private static final Logger LOGGER = StatusLogger.getLogger(); 033 034 private final CouchDbClient client; 035 private boolean closed = false; 036 037 public CouchDBConnection(final CouchDbClient client) { 038 this.client = client; 039 } 040 041 @Override 042 public CouchDBObject createObject() { 043 return new CouchDBObject(); 044 } 045 046 @Override 047 public CouchDBObject[] createList(final int length) { 048 return new CouchDBObject[length]; 049 } 050 051 @Override 052 public void insertObject(final NoSQLObject<Map<String, Object>> object) { 053 try { 054 final Response response = this.client.save(object.unwrap()); 055 if (response.getError() != null && response.getError().length() > 0) { 056 LOGGER.error("Failed to write log event to CouchDB due to error: [{}].", response.getError()); 057 } 058 } catch (final Exception e) { 059 LOGGER.error("Failed to write log event to CouchDB due to error.", e); 060 } 061 } 062 063 @Override 064 public synchronized void close() { 065 this.closed = true; 066 this.client.shutdown(); 067 } 068 069 @Override 070 public synchronized boolean isClosed() { 071 return this.closed; 072 } 073 }