/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and 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:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.meta.action.impl.handlers;
import java.text.MessageFormat;
import java.util.*;
import org.jboss.tools.common.meta.action.impl.*;
import org.jboss.tools.common.model.XModelException;
import org.jboss.tools.common.model.XModelObjectConstants;
import org.jboss.tools.common.model.XModelObject;
import org.jboss.tools.common.model.impl.AnyElementObjectImpl;
import org.jboss.tools.common.model.util.XModelObjectLoaderUtil;
public class AddAttributeToAnyElementSupport extends SpecialWizardSupport {
static String ATTRIBUTES = "attributes"; //$NON-NLS-1$
Set<String> attributes = new HashSet<String>();
boolean edit = false;
String initialName = null;
String initialValue = null;
public boolean isEnabled(XModelObject object) {
return (object != null && object.isObjectEditable());
}
public void reset() {
attributes.clear();
String[][] as = getAttributes();
for (int i = 0; i < as.length; i++) {
attributes.add(as[i][0]);
}
edit = XModelObjectConstants.TRUE.equals(action.getProperty("edit")); //$NON-NLS-1$
initialName = getProperties().getProperty(XModelObjectConstants.ATTR_NAME);
initialValue = null;
if(initialName != null) {
setAttributeValue(0, XModelObjectConstants.ATTR_NAME, initialName);
for (int i = 0; i < as.length; i++) {
if(initialName.equals(as[i][0])) initialValue = as[i][1];
}
if(initialValue != null) setAttributeValue(0, "value", initialValue); //$NON-NLS-1$
}
}
public void action(String name) throws XModelException {
if(OK.equals(name) || FINISH.equals(name)) {
finish();
setFinished(true);
} else if(CANCEL.equals(name)) {
setFinished(true);
} else if(HELP.equals(name)) {
help();
}
}
protected void finish() throws XModelException {
Properties p = extractStepData(0);
String name = p.getProperty(XModelObjectConstants.ATTR_NAME);
String value = p.getProperty("value"); //$NON-NLS-1$
String as = ""; //$NON-NLS-1$
if(!edit) {
as = getTarget().getAttributeValue(ATTRIBUTES);
if(as.length() > 0) as += AnyElementObjectImpl.SEPARATOR;
as += name + "=" + value; //$NON-NLS-1$
} else {
String[][] attrs = getAttributes();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < attrs.length; i++) {
if(sb.length() > 0) sb.append(AnyElementObjectImpl.SEPARATOR);
sb.append(attrs[i][0]).append('=');
if(attrs[i][0].equals(name)) sb.append(value); else sb.append(attrs[i][1]);
}
as = sb.toString();
}
getTarget().getModel().editObjectAttribute(getTarget(), ATTRIBUTES, as);
}
protected DefaultWizardDataValidator validator = new Validator();
public WizardDataValidator getValidator(int step) {
validator.setSupport(this, step);
return validator;
}
class Validator extends DefaultWizardDataValidator {
public void validate(Properties data) {
super.validate(data);
if(message != null) return;
String name = data.getProperty(XModelObjectConstants.ATTR_NAME);
if(!edit && attributes.contains(name)) {
message = MessageFormat.format("Attribute {0} already exists.", name);
}
if(message != null) return;
if(edit && initialValue != null && name.equals(initialName)) {
if(initialValue.equals(data.getProperty("value"))) { //$NON-NLS-1$
message = "Please set new value.";
}
}
}
}
public boolean isFieldEditorEnabled(int stepId, String name, Properties values) {
return !edit || !name.equals(XModelObjectConstants.ATTR_NAME);
}
public String[][] getAttributes() {
XModelObject o = getTarget();
if(!(o instanceof AnyElementObjectImpl)) {
o = o.getModel().createModelObject(XModelObjectLoaderUtil.ENT_ANY_ELEMENT, null);
o.setAttributeValue(ATTRIBUTES, getTarget().getAttributeValue(ATTRIBUTES));
}
return ((AnyElementObjectImpl)o).getAttributes();
}
}