/*******************************************************************************
* Copyright (c) 2007 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.el.internal.core.model;
import java.util.ArrayList;
import java.util.List;
import org.jboss.tools.common.el.core.model.ELExpression;
import org.jboss.tools.common.el.core.model.ELObjectType;
import org.jboss.tools.common.el.core.model.ELParameters;
import org.jboss.tools.common.el.core.parser.LexicalToken;
import org.jboss.tools.common.el.internal.core.parser.token.ParamEndTokenDescription;
import org.jboss.tools.common.el.internal.core.parser.token.ParamStartTokenDescription;
/**
*
* @author V. Kabanovich
*
*/
public class ELParametersImpl extends ELObjectImpl implements ELParameters {
List<ELExpression> parameters = new ArrayList<ELExpression>();
public ELParametersImpl() {}
public LexicalToken getOpenParametersToken() {
LexicalToken result = getFirstToken();
if(result != null && result.getType() == ParamStartTokenDescription.PARAM_START) {
return result;
} else {
return null;
}
}
public LexicalToken getCloseParametersToken() {
LexicalToken result = getLastToken();
if(result != null && result.getType() == ParamEndTokenDescription.PARAM_END) {
return result;
} else {
return null;
}
}
public List<ELExpression> getParameters() {
return parameters;
}
public void addChild(ELObjectImpl child) {
if(child instanceof ELExpressionImpl) {
addParameter((ELExpressionImpl)child);
} else {
throw new IllegalArgumentException("EL parameters can have only EL expressions as its children."); //$NON-NLS-1$
}
}
public void addParameter(ELExpressionImpl param) {
super.addChild(param);
parameters.add(param);
}
public String toString() {
StringBuffer sb = new StringBuffer();
LexicalToken t = getOpenParametersToken();
if(t != null) sb.append(t.getText());
boolean first = true;
for (ELExpression p: parameters) {
if(!first) {
sb.append(',');
} else {
first = false;
}
sb.append(p.toString());
}
t = getCloseParametersToken();
if(t != null) sb.append(t.getText());
return sb.toString();
}
public ELObjectType getType() {
return ELObjectType.EL_PARAMETERS;
}
}