/*
* Based on JUEL 2.2.1 code, 2006-2009 Odysseus Software GmbH
*
* 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.activiti.engine.impl.juel;
import org.activiti.engine.impl.javax.el.ELContext;
import org.activiti.engine.impl.javax.el.ELException;
import org.activiti.engine.impl.javax.el.MethodInfo;
import org.activiti.engine.impl.javax.el.ValueReference;
public final class AstText extends AstNode {
private final String value;
public AstText(String value) {
this.value = value;
}
public boolean isLiteralText() {
return true;
}
public boolean isLeftValue() {
return false;
}
public boolean isMethodInvocation() {
return false;
}
public Class<?> getType(Bindings bindings, ELContext context) {
return null;
}
public boolean isReadOnly(Bindings bindings, ELContext context) {
return true;
}
public void setValue(Bindings bindings, ELContext context, Object value) {
throw new ELException(LocalMessages.get("error.value.set.rvalue", getStructuralId(bindings)));
}
public ValueReference getValueReference(Bindings bindings, ELContext context) {
return null;
}
@Override
public Object eval(Bindings bindings, ELContext context) {
return value;
}
public MethodInfo getMethodInfo(Bindings bindings, ELContext context, Class<?> returnType, Class<?>[] paramTypes) {
return null;
}
public Object invoke(Bindings bindings, ELContext context, Class<?> returnType, Class<?>[] paramTypes, Object[] paramValues) {
return returnType == null ? value : bindings.convert(value, returnType);
}
@Override
public String toString() {
return "\"" + value + "\"";
}
@Override
public void appendStructure(StringBuilder b, Bindings bindings) {
int end = value.length() - 1;
for (int i = 0; i < end; i++) {
char c = value.charAt(i);
if ((c == '#' || c == '$') && value.charAt(i + 1) == '{') {
b.append('\\');
}
b.append(c);
}
if (end >= 0) {
b.append(value.charAt(end));
}
}
public int getCardinality() {
return 0;
}
public AstNode getChild(int i) {
return null;
}
}