org.eclipse.jdt.internal.core.JarEntryResource.java Source code

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Here is the source code for org.eclipse.jdt.internal.core.JarEntryResource.java

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/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.core;

import java.util.zip.ZipFile;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.PlatformObject;
import org.eclipse.jdt.core.IJarEntryResource;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.internal.core.util.Util;

public abstract class JarEntryResource extends PlatformObject implements IJarEntryResource {

    protected Object parent;
    protected String simpleName;

    public JarEntryResource(String simpleName) {
        this.simpleName = simpleName;
    }

    public abstract JarEntryResource clone(Object newParent);

    @Override
    public boolean equals(Object obj) {
        if (!(obj instanceof JarEntryResource))
            return false;
        JarEntryResource other = (JarEntryResource) obj;
        return this.parent.equals(other.parent) && this.simpleName.equals(other.simpleName);
    }

    protected String getEntryName() {
        String parentEntryName;
        if (this.parent instanceof IPackageFragment) {
            String elementName = ((IPackageFragment) this.parent).getElementName();
            parentEntryName = elementName.length() == 0 ? "" : elementName.replace('.', '/') + '/'; //$NON-NLS-1$
        } else if (this.parent instanceof IPackageFragmentRoot) {
            parentEntryName = ""; //$NON-NLS-1$
        } else {
            parentEntryName = ((JarEntryDirectory) this.parent).getEntryName() + '/';
        }
        return parentEntryName + this.simpleName;
    }

    @Override
    public IPath getFullPath() {
        return new Path(getEntryName()).makeAbsolute();
    }

    @Override
    public String getName() {
        return this.simpleName;
    }

    @Override
    public Object getParent() {
        return this.parent;
    }

    @Override
    public IPackageFragmentRoot getPackageFragmentRoot() {
        if (this.parent instanceof IPackageFragment) {
            return (IPackageFragmentRoot) ((IPackageFragment) this.parent).getParent();
        } else if (this.parent instanceof IPackageFragmentRoot) {
            return (IPackageFragmentRoot) this.parent;
        } else {
            return ((JarEntryDirectory) this.parent).getPackageFragmentRoot();
        }
    }

    protected ZipFile getZipFile() throws CoreException {
        if (this.parent instanceof IPackageFragment) {
            JarPackageFragmentRoot root = (JarPackageFragmentRoot) ((IPackageFragment) this.parent).getParent();
            return root.getJar();
        } else if (this.parent instanceof JarPackageFragmentRoot) {
            return ((JarPackageFragmentRoot) this.parent).getJar();
        } else
            return ((JarEntryDirectory) this.parent).getZipFile();
    }

    @Override
    public int hashCode() {
        return Util.combineHashCodes(this.simpleName.hashCode(), this.parent.hashCode());
    }

    @Override
    public boolean isReadOnly() {
        return true;
    }

    public void setParent(Object parent) {
        this.parent = parent;
    }
}