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/*******************************************************************************
* Copyright (c) 2009, 2012 Oracle. All rights reserved.
* This program and the accompanying materials are 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.core.internal.resource.java.binary;
import java.util.Vector;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.dom.EnumDeclaration;
import org.eclipse.jpt.common.core.internal.plugin.JptCommonCorePlugin;
import org.eclipse.jpt.common.core.resource.java.JavaResourceAnnotatedElement;
import org.eclipse.jpt.common.core.resource.java.JavaResourceEnum;
import org.eclipse.jpt.common.core.resource.java.JavaResourceEnumConstant;
import org.eclipse.jpt.common.core.resource.java.JavaResourceNode;
import org.eclipse.jpt.common.utility.internal.collection.CollectionTools;
import org.eclipse.jpt.common.utility.internal.iterable.FilteringIterable;
import org.eclipse.jpt.common.utility.internal.iterable.IterableTools;
import org.eclipse.jpt.common.utility.internal.iterable.LiveCloneIterable;
import org.eclipse.jpt.common.utility.internal.iterable.TransformationIterable;
/**
* binary enum
*/
final class BinaryEnum
extends BinaryAbstractType
implements JavaResourceEnum {
private final Vector<JavaResourceEnumConstant> enumConstants = new Vector<JavaResourceEnumConstant>();
// ********** construction/initialization **********
BinaryEnum(JavaResourceNode parent, IType type) {
this(parent, new TypeAdapter(type));
}
private BinaryEnum(JavaResourceNode parent, TypeAdapter adapter) {
super(parent, adapter);
CollectionTools.addAll(this.enumConstants, buildEnumConstants());
}
public Kind getKind() {
return JavaResourceAnnotatedElement.Kind.ENUM;
}
public void synchronizeWith(EnumDeclaration enumDeclaration) {
throw new UnsupportedOperationException();
}
public void resolveTypes(EnumDeclaration enumDeclaration) {
throw new UnsupportedOperationException();
}
// ********** overrides **********
@Override
public void update() {
super.update();
this.updateEnumConstants();
}
// TODO
private void updateEnumConstants() {
throw new UnsupportedOperationException();
}
// ***** enum constants *****
public Iterable<JavaResourceEnumConstant> getEnumConstants() {
return new LiveCloneIterable<JavaResourceEnumConstant>(this.enumConstants);
}
private Iterable<JavaResourceEnumConstant> buildEnumConstants() {
return new TransformationIterable<IField, JavaResourceEnumConstant>(getEnumConstants(getElement())) {
@Override
protected JavaResourceEnumConstant transform(IField field) {
return BinaryEnum.this.buildEnumConstant(field);
}
};
}
private Iterable<IField> getEnumConstants(IType type) {
return new FilteringIterable<IField>(IterableTools.iterable(this.getFields(type))) {
@Override
protected boolean accept(IField jdtField) {
return isEnumConstant(jdtField);
}
};
}
private IField[] getFields(IType type) {
try {
return type.getFields();
}
catch (JavaModelException ex) {
JptCommonCorePlugin.instance().logError(ex);
return EMPTY_FIELD_ARRAY;
}
}
private static final IField[] EMPTY_FIELD_ARRAY = new IField[0];
private boolean isEnumConstant(IField field) {
try {
return field.isEnumConstant();
}
catch (JavaModelException ex) {
JptCommonCorePlugin.instance().logError(ex);
return false;
}
}
private JavaResourceEnumConstant buildEnumConstant(IField jdtEnumConstant) {
return new BinaryEnumConstant(this, jdtEnumConstant);
}
}
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