/**
*
* Copyright 2004 The Apache Software Foundation
*
* 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.apache.geronimo.activation.handlers;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import javax.activation.DataContentHandler;
import javax.activation.DataSource;
/**
* @version $Rev$ $Date$
*/
public class AbstractTextHandler implements DataContentHandler {
private final DataFlavor flavour;
public AbstractTextHandler(DataFlavor flavour) {
this.flavour = flavour;
}
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] {flavour};
}
public Object getTransferData(DataFlavor dataFlavor, DataSource dataSource) throws UnsupportedFlavorException, IOException {
return flavour.equals(dataFlavor) ? getContent(dataSource) : null;
}
public Object getContent(DataSource ds) throws IOException {
// todo handle encoding
Reader reader = new InputStreamReader(ds.getInputStream());
StringBuffer result = new StringBuffer(1024);
char[] buffer = new char[32768];
int count;
while ((count = reader.read(buffer)) != -1) {
result.append(buffer, 0, count);
}
return result.toString();
}
public void writeTo(Object o, String mimeType, OutputStream os) throws IOException {
String s;
if (o instanceof String) {
s = (String) o;
} else if (o != null) {
s = o.toString();
} else {
return;
}
// todo handle encoding
OutputStreamWriter writer = new OutputStreamWriter(os);
writer.write(s);
writer.flush();
}
}