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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.common.params;
import java.util.LinkedHashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
/**
* This class is similar to MultiMapSolrParams except you can edit the
* parameters after it is initialized. It has helper functions to set/add
* integer and boolean param values.
*
* @since solr 1.3
*/
public class ModifiableSolrParams extends SolrParams
{
private Map vals;
public ModifiableSolrParams()
{
// LinkedHashMap so params show up in CGI in the same order as they are entered
vals = new LinkedHashMap<>();
}
/** Constructs a new ModifiableSolrParams directly using the provided Map<String,String[]> */
public ModifiableSolrParams( Map v )
{
vals = v;
}
/** Constructs a new ModifiableSolrParams, copying values from an existing SolrParams */
public ModifiableSolrParams(SolrParams params)
{
vals = new LinkedHashMap<>();
if( params != null ) {
this.add( params );
}
}
public int size() {
return vals == null ? 0 : vals.size();
}
public Map getMap() {
return vals;
}
//----------------------------------------------------------------
//----------------------------------------------------------------
/**
* Replace any existing parameter with the given name. if val==null remove key from params completely.
*/
public ModifiableSolrParams set( String name, String ... val ) {
if (val==null || (val.length==1 && val[0]==null)) {
vals.remove(name);
} else {
vals.put( name, val );
}
return this;
}
public ModifiableSolrParams set( String name, int val ) {
set( name, String.valueOf(val) );
return this;
}
public ModifiableSolrParams set( String name, boolean val ) {
set( name, String.valueOf(val) );
return this;
}
/**
* Add the given values to any existing name
* @param name Key
* @param val Array of value(s) added to the name. NOTE: If val is null
* or a member of val is null, then a corresponding null reference
* will be included when a get method is called on the key later.
* @return this
*/
public ModifiableSolrParams add( String name, String ... val ) {
String[] old = vals.put(name, val);
if( old != null ) {
if( val == null || val.length < 1 ) {
String[] both = new String[old.length+1];
System.arraycopy(old, 0, both, 0, old.length);
both[old.length] = null;
vals.put( name, both );
}
else {
String[] both = new String[old.length+val.length];
System.arraycopy(old, 0, both, 0, old.length);
System.arraycopy(val, 0, both, old.length, val.length);
vals.put( name, both );
}
}
return this;
}
public void add(SolrParams params)
{
Iterator names = params.getParameterNamesIterator();
while (names.hasNext()) {
String name = names.next();
set(name, params.getParams(name));
}
}
/**
* remove a field at the given name
*/
public String[] remove( String name )
{
return vals.remove( name );
}
/** clear all parameters */
public void clear()
{
vals.clear();
}
/**
* remove the given value for the given name
*
* @return true if the item was removed, false if null or not present
*/
public boolean remove(String name, String value) {
String[] tmp = vals.get(name);
if (tmp==null) return false;
for (int i=0; i 0 ) {
return v[0];
}
return null;
}
@Override
public Iterator getParameterNamesIterator() {
return vals.keySet().iterator();
}
public Set getParameterNames() {
return vals.keySet();
}
@Override
public String[] getParams(String param) {
return vals.get( param );
}
}
