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Diffstat (limited to 'branches/das-java-beta2/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/ApplyChangesCommandImpl.java')
-rw-r--r-- | branches/das-java-beta2/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/ApplyChangesCommandImpl.java | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/branches/das-java-beta2/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/ApplyChangesCommandImpl.java b/branches/das-java-beta2/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/ApplyChangesCommandImpl.java new file mode 100644 index 0000000000..b19aab85e8 --- /dev/null +++ b/branches/das-java-beta2/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/ApplyChangesCommandImpl.java @@ -0,0 +1,79 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.das.rdb.impl; + +import java.sql.Connection; + +import org.apache.log4j.Logger; +import org.apache.tuscany.das.rdb.config.wrapper.MappingWrapper; + +import commonj.sdo.DataObject; + +/** + * + */ +public class ApplyChangesCommandImpl extends BaseCommandImpl { + + private final Logger logger = Logger.getLogger(ApplyChangesCommandImpl.class); + + private ChangeSummarizer summarizer = new ChangeSummarizer(); + + public ApplyChangesCommandImpl(MappingWrapper config, Connection connection) { + this.configWrapper = config; + if (connection != null) { + setConnection(connection, config.getConfig()); + } + + } + + public void setConnection(ConnectionImpl connection) { + summarizer.setConnection(connection); + } + + public void execute(DataObject root) { + if (this.logger.isDebugEnabled()) { + this.logger.debug("Executing ApplyChangesCmd"); + } + + if (summarizer.getConnection() == null) { + throw new RuntimeException("A connection must be provided"); + } + + if (!root.equals(root.getDataGraph().getRootObject())) { + throw new RuntimeException("'root' argument must be the root of the datagraph"); + } + + summarizer.setMapping(configWrapper); + + Changes changes = summarizer.loadChanges(root); + + boolean success = false; + try { + changes.execute(); + success = true; + } finally { + if (success) { + summarizer.getConnection().cleanUp(); + } else { + summarizer.getConnection().errorCleanUp(); + } + } + } + +} |