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/*****************************************************************************
* Copyright (c) 2013, 2017 CEA LIST.
*
* 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:
* CEA LIST - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.cdo.core.util;
import org.eclipse.emf.cdo.eresource.CDOResourceNode;
import org.eclipse.emf.common.util.URI;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
/**
* This is the CDOPredicates type. Enjoy.
*/
public class CDOPredicates {
// Not instantiable by clients.
private CDOPredicates() {
super();
}
public static <T> Predicate<T> adaptsTo(Class<?> adapterType) {
return Predicates.<T, Object> compose(Predicates.notNull(), CDOFunctions.<T, Object> adapt(adapterType));
}
public static Predicate<CDOResourceNode> hasExtension(String fileExtension) {
return (fileExtension == null) ? new HasNoExtension() : new HasExtension(fileExtension);
}
public static Predicate<CDOResourceNode> hasURIPrefix(URI prefix) {
if (!prefix.isPrefix()) {
throw new IllegalArgumentException("not a URI prefix"); //$NON-NLS-1$
}
return new HasURIPrefix(prefix);
}
//
// Nested types
//
private static final class HasExtension implements Predicate<CDOResourceNode> {
private final String fileExtension;
HasExtension(String fileExtension) {
this.fileExtension = fileExtension;
}
@Override
public boolean apply(CDOResourceNode input) {
return fileExtension.equals(input.getURI().fileExtension());
}
@Override
public String toString() {
return String.format("hasExtension(%s)", fileExtension); //$NON-NLS-1$
}
@Override
public int hashCode() {
return fileExtension.hashCode();
}
@Override
public boolean equals(Object other) {
return (other instanceof HasExtension) && ((HasExtension) other).fileExtension.equals(fileExtension);
}
}
private static final class HasNoExtension implements Predicate<CDOResourceNode> {
HasNoExtension() {
super();
}
@Override
public boolean apply(CDOResourceNode input) {
return input.getURI().fileExtension() == null;
}
@Override
public String toString() {
return "hasNoExtension()"; //$NON-NLS-1$
}
@Override
public int hashCode() {
return HasNoExtension.class.hashCode();
}
@Override
public boolean equals(Object other) {
return (other instanceof HasNoExtension);
}
}
private static final class HasURIPrefix implements Predicate<CDOResourceNode> {
private final URI prefix;
HasURIPrefix(URI prefix) {
this.prefix = prefix;
}
@Override
public boolean apply(CDOResourceNode input) {
return input.getURI().toString().startsWith(prefix.toString());
}
@Override
public String toString() {
return String.format("hasURIPrefix(%s)", prefix); //$NON-NLS-1$
}
@Override
public int hashCode() {
return prefix.hashCode();
}
@Override
public boolean equals(Object other) {
return (other instanceof HasURIPrefix) && ((HasURIPrefix) other).prefix.equals(prefix);
}
}
}
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