
org.n52.iceland.response.SoapChainResponseWriter Maven / Gradle / Ivy
/*
* Copyright 2015-2020 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* 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.n52.iceland.response;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;
import java.util.Set;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;
import org.n52.iceland.coding.encode.AbstractResponseWriter;
import org.n52.iceland.coding.encode.ResponseProxy;
import org.n52.iceland.coding.encode.ResponseWriterKey;
import org.n52.janmayen.Producer;
import org.n52.shetland.w3c.soap.SoapChain;
import org.n52.shetland.w3c.soap.SoapResponse;
import org.n52.svalbard.encode.Encoder;
import org.n52.svalbard.encode.EncoderKey;
import org.n52.svalbard.encode.EncoderRepository;
import org.n52.svalbard.encode.StreamingEncoder;
import org.n52.svalbard.encode.exception.EncodingException;
import org.n52.svalbard.encode.exception.NoEncoderForKeyException;
import org.n52.svalbard.util.CodingHelper;
/**
* Streaming SOAP response writer implementation.
*
* @author Carsten Hollmann
* @since 2.0.0
*
*/
public class SoapChainResponseWriter extends AbstractResponseWriter {
public static final ResponseWriterKey KEY = new ResponseWriterKey(SoapChain.class);
private final Producer xmlOptions;
private final boolean forceStreamingEncoding;
public SoapChainResponseWriter(EncoderRepository encoderRepository,
Producer xmlOptions,
boolean forceStreamingEncoding) {
super(encoderRepository);
this.xmlOptions = xmlOptions;
this.forceStreamingEncoding = forceStreamingEncoding;
}
@Override
public Set getKeys() {
return Collections.singleton(KEY);
}
@Override
public void write(SoapChain chain, OutputStream out, ResponseProxy responseProxy) throws IOException {
try {
write(chain, out);
} catch (EncodingException ex) {
throw new IOException(ex);
}
}
private void write(SoapChain chain, OutputStream out) throws EncodingException, IOException {
String namespace = chain.getSoapResponse().getSoapNamespace();
EncoderKey key = CodingHelper.getEncoderKey(namespace, chain.getSoapResponse());
Encoder, SoapResponse> encoder = getEncoder(key);
if (encoder == null) {
throw new NoEncoderForKeyException(key);
}
write(encoder, chain, out);
}
private void write(Encoder, SoapResponse> encoder, SoapChain chain, OutputStream out)
throws IOException, EncodingException {
if (this.forceStreamingEncoding && encoder instanceof StreamingEncoder) {
((StreamingEncoder, ? super SoapResponse>) encoder)
.encode(chain.getSoapResponse(), out);
} else {
Object object = encoder.encode(chain.getSoapResponse());
if (object instanceof XmlObject) {
((XmlObject) object).save(out, this.xmlOptions.get());
}
}
}
@Override
public boolean supportsGZip(SoapChain t) {
return false;
}
}
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