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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.sdklib.internal.repository.packages;
import com.android.sdklib.internal.repository.archives.Archive.Arch;
import com.android.sdklib.internal.repository.archives.Archive.Os;
import com.android.sdklib.internal.repository.sources.SdkSource;
import com.android.sdklib.repository.PkgProps;
import com.android.sdklib.repository.SdkRepoConstants;
import org.w3c.dom.Node;
import java.util.Map;
import java.util.Properties;
/**
* Represents a package in an SDK repository that has a {@link FullRevision},
* which is a multi-part revision number (major.minor.micro) and an optional preview revision.
*/
public abstract class FullRevisionPackage extends Package
implements IFullRevisionProvider {
private final FullRevision mPreviewVersion;
/**
* Creates a new package from the attributes and elements of the given XML node.
* This constructor should throw an exception if the package cannot be created.
*
* @param source The {@link SdkSource} where this is loaded from.
* @param packageNode The XML element being parsed.
* @param nsUri The namespace URI of the originating XML document, to be able to deal with
* parameters that vary according to the originating XML schema.
* @param licenses The licenses loaded from the XML originating document.
*/
FullRevisionPackage(SdkSource source,
Node packageNode,
String nsUri,
Map<String,String> licenses) {
super(source, packageNode, nsUri, licenses);
mPreviewVersion = PackageParserUtils.parseFullRevisionElement(
PackageParserUtils.findChildElement(packageNode, SdkRepoConstants.NODE_REVISION));
}
/**
* Manually create a new package with one archive and the given attributes.
* This is used to create packages from local directories in which case there must be
* one archive which URL is the actual target location.
* <p/>
* Properties from props are used first when possible, e.g. if props is non null.
* <p/>
* By design, this creates a package with one and only one archive.
*/
public FullRevisionPackage(
SdkSource source,
Properties props,
int revision,
String license,
String description,
String descUrl,
Os archiveOs,
Arch archiveArch,
String archiveOsPath) {
super(source, props, revision, license, description, descUrl,
archiveOs, archiveArch, archiveOsPath);
String revStr = getProperty(props, PkgProps.PKG_REVISION, null);
FullRevision rev = null;
if (revStr != null) {
try {
rev = FullRevision.parseRevision(revStr);
} catch (NumberFormatException ignore) {}
}
if (rev == null) {
rev = new FullRevision(revision);
}
mPreviewVersion = rev;
}
@Override
public FullRevision getRevision() {
return mPreviewVersion;
}
@Override
public void saveProperties(Properties props) {
super.saveProperties(props);
props.setProperty(PkgProps.PKG_REVISION, mPreviewVersion.toShortString());
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + ((mPreviewVersion == null) ? 0 : mPreviewVersion.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof FullRevisionPackage)) {
return false;
}
FullRevisionPackage other = (FullRevisionPackage) obj;
if (mPreviewVersion == null) {
if (other.mPreviewVersion != null) {
return false;
}
} else if (!mPreviewVersion.equals(other.mPreviewVersion)) {
return false;
}
return true;
}
/**
* Computes whether the given package is a suitable update for the current package.
* <p/>
* A specific case here is that a release package can update a preview, whereas
* a preview can only update another preview.
* <p/>
* {@inheritDoc}
*/
@Override
public UpdateInfo canBeUpdatedBy(Package replacementPackage) {
if (replacementPackage == null) {
return UpdateInfo.INCOMPATIBLE;
}
// check they are the same item, ignoring the preview bit.
if (!sameItemAs(replacementPackage, true /*ignorePreviews*/)) {
return UpdateInfo.INCOMPATIBLE;
}
// a preview cannot update a non-preview
if (!getRevision().isPreview() && replacementPackage.getRevision().isPreview()) {
return UpdateInfo.INCOMPATIBLE;
}
// check revision number
if (replacementPackage.getRevision().compareTo(this.getRevision()) > 0) {
return UpdateInfo.UPDATE;
}
// not an upgrade but not incompatible either.
return UpdateInfo.NOT_UPDATE;
}
}
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