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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.request;
import org.apache.solr.search.SolrIndexSearcher;
import org.apache.solr.util.RefCounted;
import org.apache.solr.schema.IndexSchema;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.ContentStream;
import org.apache.solr.core.SolrCore;
import java.util.Map;
import java.util.HashMap;
/**
* Base implementation of SolrQueryRequest that provides some
* convenience methods for accessing parameters, and manages an IndexSearcher
* reference.
*
*
* The close() method must be called on any instance of this
* class once it is no longer in use.
*
*
*
* @version $Id: SolrQueryRequestBase.java 776266 2009-05-19 10:45:02Z noble $
*/
public abstract class SolrQueryRequestBase implements SolrQueryRequest {
/**
* @deprecated Use org.apache.solr.common.params.CommonParams
*/
@Deprecated
public static final String QUERY_NAME="q";
/**
* @deprecated Use org.apache.solr.common.params.CommonParams
*/
@Deprecated
public static final String START_NAME="start";
/**
* @deprecated Use org.apache.solr.common.params.CommonParams
*/
@Deprecated
public static final String ROWS_NAME="rows";
/**
* @deprecated Use org.apache.solr.common.params.CommonParams
*/
@Deprecated
public static final String XSL_NAME="xsl";
/**
* @deprecated Use org.apache.solr.common.params.CommonParams
*/
@Deprecated
public static final String QUERYTYPE_NAME="qt";
protected final SolrCore core;
protected final SolrParams origParams;
protected SolrParams params;
protected Map context;
protected Iterable streams;
public SolrQueryRequestBase(SolrCore core, SolrParams params) {
this.core = core;
this.params = this.origParams = params;
}
public Map getContext() {
// SolrQueryRequest as a whole isn't thread safe, and this isn't either.
if (context==null) context = new HashMap();
return context;
}
public SolrParams getParams() {
return params;
}
public SolrParams getOriginalParams() {
return origParams;
}
public void setParams(SolrParams params) {
this.params = params;
}
/**
* @deprecated Use {@link #getParams()} instead.
*/
@Deprecated
public String getParam(String name) {
return params.get(name);
}
/**
* @deprecated Use {@link #getParams()} instead.
*/
@Deprecated
public String[] getParams(String name) {
return params.getParams(name);
}
/**
* @deprecated use getParams().required().getInt( name ) instead
*/
@Deprecated
public int getIntParam(String name) {
String s = getParam(name);
if (s==null) {
throw new SolrException( SolrException.ErrorCode.SERVER_ERROR,"Missing required parameter '"+name+"' from " + this);
}
return Integer.parseInt(s);
}
/**
* @deprecated use getParams().required().getInt( name ) instead
*/
@Deprecated
public int getIntParam(String name, int defval) {
String s = getParam(name);
return s==null ? defval : Integer.parseInt(s);
}
/**
* @deprecated use getParams().required().getParam( name ) instead
*/
@Deprecated
public String getStrParam(String name) {
String s = getParam(name);
if (s==null) {
throw new SolrException( SolrException.ErrorCode.SERVER_ERROR,"Missing required parameter '"+name+"' from " + this);
}
return s;
}
/**
* @deprecated use getParams().required().getParam( name ) instead
*/
@Deprecated
public String getStrParam(String name, String defval) {
String s = getParam(name);
return s==null ? defval : s;
}
/**
* @deprecated Use {@link #getParams()} and {@link CommonParams#Q} instead.
*/
@Deprecated
public String getQueryString() {
return params.get(CommonParams.Q);
}
/**
* @deprecated Use {@link #getParams()} and {@link CommonParams#QT} instead.
*/
@Deprecated
public String getQueryType() {
return params.get(CommonParams.QT);
}
/**
* starting position in matches to return to client
* @deprecated Use {@link #getParams()} and {@link CommonParams#START} instead.
*/
@Deprecated
public int getStart() {
return params.getInt(CommonParams.START, 0);
}
/**
* number of matching documents to return
* @deprecated Use {@link #getParams()} and {@link CommonParams#ROWS} instead.
*/
@Deprecated
public int getLimit() {
return params.getInt(CommonParams.ROWS, 10);
}
protected final long startTime=System.currentTimeMillis();
// Get the start time of this request in milliseconds
public long getStartTime() {
return startTime;
}
// The index searcher associated with this request
protected RefCounted searcherHolder;
public SolrIndexSearcher getSearcher() {
if(core == null) return null;//a request for a core admin will no have a core
// should this reach out and get a searcher from the core singleton, or
// should the core populate one in a factory method to create requests?
// or there could be a setSearcher() method that Solr calls
if (searcherHolder==null) {
searcherHolder = core.getSearcher();
}
return searcherHolder.get();
}
// The solr core (coordinator, etc) associated with this request
public SolrCore getCore() {
return core;
}
// The index schema associated with this request
public IndexSchema getSchema() {
//a request for a core admin will no have a core
return core == null? null: core.getSchema();
}
/**
* Frees resources associated with this request, this method must
* be called when the object is no longer in use.
*/
public void close() {
if (searcherHolder!=null) {
searcherHolder.decref();
searcherHolder = null;
}
}
/** A Collection of ContentStreams passed to the request
*/
public Iterable getContentStreams() {
return streams;
}
public void setContentStreams( Iterable s ) {
streams = s;
}
public String getParamString() {
return origParams.toString();
}
public String toString() {
return this.getClass().getSimpleName() + '{' + params + '}';
}
}