org.apache.axiom.attachments.LegacyPartDataHandler Maven / Gradle / Ivy
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.axiom.attachments;
import java.io.IOException;
import java.io.InputStream;
import javax.activation.DataSource;
import org.apache.axiom.attachments.lifecycle.DataHandlerExt;
import org.apache.axiom.blob.Blob;
import org.apache.axiom.mime.Part;
import org.apache.axiom.mime.PartDataHandler;
final class LegacyPartDataHandler extends PartDataHandler implements DataHandlerExt {
LegacyPartDataHandler(Part part) {
super(part);
}
@Override
protected DataSource createDataSource(Part part, String contentType) {
Blob blob = part.getBlob();
if (blob instanceof LegacyTempFileBlob) {
return ((LegacyTempFileBlob)blob).getDataSource(contentType);
} else {
return null;
}
}
@Override
public InputStream readOnce() throws IOException {
return getPart().getInputStream(false);
}
@Override
public void purgeDataSource() throws IOException {
getPart().discard();
}
@Override
public void deleteWhenReadOnce() throws IOException {
// As shown in AXIOM-381, in all released versions of Axiom, deleteWhenReadOnce
// always has the same effect as purgeDataSource
purgeDataSource();
}
}