Package org.drools.guvnor.server.contenthandler

Source Code of org.drools.guvnor.server.contenthandler.PropertiesHandler

/*
* Copyright 2005 JBoss Inc
*
* Licensed 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.drools.guvnor.server.contenthandler;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import org.drools.guvnor.client.asseteditor.PropertiesHolder;
import org.drools.guvnor.client.rpc.Asset;
import org.drools.guvnor.server.util.PropertiesPersistence;
import org.drools.repository.AssetItem;

import com.google.gwt.user.client.rpc.SerializationException;

/**
* Handle *.properties file as a content for rule asset instead of a binary
* attachment
*/
public class PropertiesHandler extends ContentHandler {
    public void retrieveAssetContent(Asset asset,
                                     AssetItem item) throws SerializationException {
        if ( item.getContent() != null ) {
            asset.setContent( PropertiesPersistence.getInstance().unmarshal(
                                                                             item.getContent() ) );
        }
    }

    public void storeAssetContent(Asset asset,
                                  AssetItem repoAsset)
                                                      throws SerializationException {
        PropertiesHolder holder = (PropertiesHolder) asset.getContent();
        String toSave = PropertiesPersistence.getInstance().marshal( holder );

        InputStream input = null;
        try {
            try {
                input = new ByteArrayInputStream( toSave.getBytes( "UTF-8" ) );
                repoAsset.updateBinaryContentAttachment( input );
            } finally {
                if ( input != null ) {
                    input.close();
                }
            }
        } catch ( UnsupportedEncodingException e ) {
            e.printStackTrace();
            throw new RuntimeException( e ); // TODO: ?
        } catch ( IOException e ) {
            e.printStackTrace();
            throw new RuntimeException( e );
        }
    }
}
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