org.apache.solr.client.solrj.impl.BinaryRequestWriter.java Source code

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Here is the source code for org.apache.solr.client.solrj.impl.BinaryRequestWriter.java

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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 "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.solr.client.solrj.impl;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collection;

import org.apache.solr.client.solrj.SolrRequest;
import org.apache.solr.client.solrj.request.JavaBinUpdateRequestCodec;
import org.apache.solr.client.solrj.request.RequestWriter;
import org.apache.solr.client.solrj.request.UpdateRequest;
import org.apache.solr.common.util.ContentStream;

import static org.apache.solr.common.params.CommonParams.JAVABIN_MIME;

/**
 * A RequestWriter which writes requests in the javabin format
 *
 *
 * @see org.apache.solr.client.solrj.request.RequestWriter
 * @since solr 1.4
 */
public class BinaryRequestWriter extends RequestWriter {

    @Override
    public ContentWriter getContentWriter(SolrRequest req) {
        if (req instanceof UpdateRequest) {
            UpdateRequest updateRequest = (UpdateRequest) req;
            if (isEmpty(updateRequest))
                return null;
            return new ContentWriter() {
                @Override
                public void write(OutputStream os) throws IOException {
                    new JavaBinUpdateRequestCodec().marshal(updateRequest, os);
                }

                @Override
                public String getContentType() {
                    return JAVABIN_MIME;
                }
            };
        } else {
            return req.getContentWriter(JAVABIN_MIME);
        }
    }

    @Override
    public Collection<ContentStream> getContentStreams(SolrRequest req) throws IOException {
        if (req instanceof UpdateRequest) {
            UpdateRequest updateRequest = (UpdateRequest) req;
            if (isEmpty(updateRequest))
                return null;
            throw new RuntimeException("This Should not happen");
        } else {
            return super.getContentStreams(req);
        }
    }

    @Override
    public String getUpdateContentType() {
        return JAVABIN_MIME;
    }

    @Override
    public void write(SolrRequest request, OutputStream os) throws IOException {
        if (request instanceof UpdateRequest) {
            UpdateRequest updateRequest = (UpdateRequest) request;
            new JavaBinUpdateRequestCodec().marshal(updateRequest, os);
        }
    }

    /*
     * A hack to get access to the protected internal buffer and avoid an additional copy
     */
    public static class BAOS extends ByteArrayOutputStream {
        public byte[] getbuf() {
            return super.buf;
        }
    }
}