package org.apache.solr.handler;
/**
* 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.
*/
import org.apache.solr.common.SolrException;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.params.UpdateParams;
import org.apache.solr.common.util.ContentStream;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
import org.apache.solr.update.processor.UpdateRequestProcessor;
import org.apache.solr.update.processor.UpdateRequestProcessorChain;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Shares common code between various handlers that manipulate {@link org.apache.solr.common.util.ContentStream} objects.
*
**/
public abstract class ContentStreamHandlerBase extends RequestHandlerBase {
public static Logger log = LoggerFactory.getLogger(XmlUpdateRequestHandler.class);
@Override
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
SolrParams params = req.getParams();
String updateChainName = null;
if(params.get(UpdateParams.UPDATE_CHAIN_DEPRECATED) != null) {
log.warn("Use of deprecated update request parameter "+UpdateParams.UPDATE_CHAIN_DEPRECATED+
" detected. Please use the new parameter "+UpdateParams.UPDATE_CHAIN+" instead, as support"+
" for "+UpdateParams.UPDATE_CHAIN_DEPRECATED+" will be removed in a later version.");
updateChainName = params.get(UpdateParams.UPDATE_CHAIN_DEPRECATED);
} else {
updateChainName = params.get(UpdateParams.UPDATE_CHAIN);
}
UpdateRequestProcessorChain processorChain =
req.getCore().getUpdateProcessingChain(updateChainName);
UpdateRequestProcessor processor = processorChain.createProcessor(req, rsp);
try {
ContentStreamLoader documentLoader = newLoader(req, processor);
Iterable<ContentStream> streams = req.getContentStreams();
if (streams == null) {
if (!RequestHandlerUtils.handleCommit(processor, params, false) && !RequestHandlerUtils.handleRollback(processor, params, false)) {
throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "missing content stream");
}
} else {
for (ContentStream stream : streams) {
documentLoader.load(req, rsp, stream);
}
// Perhaps commit from the parameters
RequestHandlerUtils.handleCommit(processor, params, false);
RequestHandlerUtils.handleRollback(processor, params, false);
}
} finally {
// finish the request
processor.finish();
}
}
protected abstract ContentStreamLoader newLoader(SolrQueryRequest req, UpdateRequestProcessor processor);
}