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Core services for Usergrid system.
/*******************************************************************************
* Copyright 2012 Apigee Corporation
*
* Licensed 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.usergrid.persistence.query.tree;
import static org.apache.commons.lang.StringUtils.removeEnd;
import org.antlr.runtime.ClassicToken;
import org.antlr.runtime.Token;
/**
* @author tnine
*
*/
public class StringLiteral extends Literal {
private String value;
private String finishValue;
/**
* @param t
*/
public StringLiteral(Token t) {
super(t);
String newValue = t.getText();
newValue = newValue.substring(1, newValue.length() - 1);
parseValue(newValue);
}
public StringLiteral(String value) {
super(new ClassicToken(0, value));
parseValue(value);
}
/**
* Parse the value and set the optional end value
*
* @param value
*/
private void parseValue(String value) {
this.value = value.trim().toLowerCase();
if ("*".equals(value)) {
this.value = null;
this.finishValue = null;
return;
}
if (value != null && value.endsWith("*")) {
this.value = removeEnd(value.toString(), "*");
finishValue = this.value + "\uFFFF";
}
// set the end value to the same as the start value
else {
finishValue = value;
}
}
/**
* If this were a string literal
*
* @return
*/
public String getEndValue() {
return this.finishValue;
}
public String getValue() {
return this.value;
}
}