Package org.apache.geronimo.web25.deployment.merge.webfragment

Source Code of org.apache.geronimo.web25.deployment.merge.webfragment.DataSourceMergeHandler

/**
*  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.geronimo.web25.deployment.merge.webfragment;

import org.apache.geronimo.common.DeploymentException;
import org.apache.geronimo.web25.deployment.merge.ElementSource;
import org.apache.geronimo.web25.deployment.merge.MergeContext;
import org.apache.geronimo.web25.deployment.merge.MergeItem;
import org.apache.geronimo.web25.deployment.utils.WebDeploymentMessageUtils;
import org.apache.geronimo.xbeans.javaee6.DataSourceType;
import org.apache.geronimo.xbeans.javaee6.WebAppType;
import org.apache.geronimo.xbeans.javaee6.WebFragmentType;

/**
* @version $Rev: 931020 $ $Date: 2010-04-06 01:14:09 -0400 (Tue, 06 Apr 2010) $
*/
public class DataSourceMergeHandler implements WebFragmentMergeHandler<WebFragmentType, WebAppType> {

    @Override
    public void merge(WebFragmentType webFragment, WebAppType webApp, MergeContext mergeContext) throws DeploymentException {
        for (DataSourceType srcDataSource : webFragment.getDataSourceArray()) {
            String dataSourceKey = createDataSourceKey(srcDataSource, mergeContext);
            MergeItem mergeItem = (MergeItem) mergeContext.getAttribute(dataSourceKey);
            if (mergeItem != null && mergeItem.isFromWebFragment()) {
                throw new DeploymentException(WebDeploymentMessageUtils.createDuplicateJNDIRefMessage("data-source", srcDataSource.getName().getStringValue(), mergeContext.getCurrentJarUrl(), mergeItem
                        .getBelongedURL()));
            }
            DataSourceType targetDataSource = (DataSourceType) webApp.addNewDataSource().set(srcDataSource);
            mergeContext.setAttribute(dataSourceKey, new MergeItem(targetDataSource, mergeContext.getCurrentJarUrl(), ElementSource.WEB_FRAGMENT));
        }
    }

    @Override
    public void postProcessWebXmlElement(WebAppType webApp, MergeContext context) throws DeploymentException {
    }

    @Override
    public void preProcessWebXmlElement(WebAppType webApp, MergeContext mergeContext) throws DeploymentException {
        for (DataSourceType dataSource : webApp.getDataSourceArray()) {
            mergeContext.setAttribute(createDataSourceKey(dataSource, mergeContext), new MergeItem(dataSource, null, ElementSource.WEB_XML));
        }
    }

    public static String createDataSourceKey(DataSourceType dataSource, MergeContext mergeContext) {
        return "data-source.name." + dataSource.getName().getStringValue();
    }
}
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