Current File : //home/waritko/yacy/source/net/yacy/cora/federate/solr/logic/StringLiteral.java
/**
* StringLiteral
* Copyright 2014 by Michael Peter Christen
* First released 03.08.2014 at http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.yacy.cora.federate.solr.logic;
import org.apache.solr.common.SolrDocument;
import net.yacy.cora.federate.solr.SchemaDeclaration;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
public class StringLiteral extends Literal implements Term {
private SchemaDeclaration key;
private String value;
public StringLiteral(final SchemaDeclaration key, final String value) {
super();
this.key = key;
this.value = value;
}
@Override
public Object clone() {
return new StringLiteral(this.key, this.value);
}
@Override
public boolean equals(Object otherTerm) {
if (!(otherTerm instanceof StringLiteral)) return false;
StringLiteral o = (StringLiteral) otherTerm;
return this.key.equals(o.key) && this.value.equals(o.value);
}
@Override
public int hashCode() {
return key.hashCode() + value.hashCode();
}
/**
* create a Solr query string from this literal
* @return a string which is a Solr query string
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(this.key.getSolrFieldName());
sb.append(':').append('"').append(this.value).append('"');
return sb.toString();
}
/**
* check if the key/value pair of this literal occurs in the SolrDocument
* @param doc the document to match to this literal
* @return true, if the key of this literal is contained in the document and the
* value equals (does not equal) with the value if this literal (if the signature is false)
*/
@Override
public boolean matches(SolrDocument doc) {
Object v = doc.getFieldValue(this.key.getSolrFieldName());
if (v == null) return false;
return this.value.equals(AbstractSolrConnector.CATCHALL_TERM) || v.toString().matches(this.value);
}
}
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