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/*
* Copyright (C) 2011 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.repository.PkgProps;
import com.android.sdklib.repository.RepoConstants;
import com.android.utils.Pair;
import org.w3c.dom.Node;
import java.util.Properties;
/**
* Helper class to handle the layoutlib version provided by a package.
*/
public class LayoutlibVersionMixin implements ILayoutlibVersion {
/**
* The layoutlib version.
* The first integer is the API of layoublib, which should be > 0.
* It will be equal to {@link #LAYOUTLIB_API_NOT_SPECIFIED} (0) if the layoutlib
* version isn't specified.
* The second integer is the revision for that given API. It is >= 0
* and works as a minor revision number, incremented for the same API level.
*/
private final Pair<Integer, Integer> mLayoutlibVersion;
/**
* Parses an XML node to process the {@code <layoutlib>} element.
*
* The layoutlib element is new in the XSD rev 4, so we need to cope with it missing
* in earlier XMLs.
*/
public LayoutlibVersionMixin(Node pkgNode) {
int api = LAYOUTLIB_API_NOT_SPECIFIED;
int rev = LAYOUTLIB_REV_NOT_SPECIFIED;
Node layoutlibNode =
PackageParserUtils.findChildElement(pkgNode, RepoConstants.NODE_LAYOUT_LIB);
if (layoutlibNode != null) {
api = PackageParserUtils.getXmlInt(layoutlibNode, RepoConstants.NODE_API, 0);
rev = PackageParserUtils.getXmlInt(layoutlibNode, RepoConstants.NODE_REVISION, 0);
}
mLayoutlibVersion = Pair.of(api, rev);
}
/**
* Parses the layoutlib version optionally available in the given {@link Properties}.
*/
public LayoutlibVersionMixin(Properties props) {
int layoutlibApi = Package.getPropertyInt(props, PkgProps.LAYOUTLIB_API,
LAYOUTLIB_API_NOT_SPECIFIED);
int layoutlibRev = Package.getPropertyInt(props, PkgProps.LAYOUTLIB_REV,
LAYOUTLIB_REV_NOT_SPECIFIED);
mLayoutlibVersion = Pair.of(layoutlibApi, layoutlibRev);
}
/**
* Stores the layoutlib version in the given {@link Properties}.
*/
void saveProperties(Properties props) {
if (mLayoutlibVersion.getFirst().intValue() != LAYOUTLIB_API_NOT_SPECIFIED) {
props.setProperty(PkgProps.LAYOUTLIB_API, mLayoutlibVersion.getFirst().toString());
props.setProperty(PkgProps.LAYOUTLIB_REV, mLayoutlibVersion.getSecond().toString());
}
}
/**
* Returns the layoutlib version.
* <p/>
* The first integer is the API of layoublib, which should be > 0.
* It will be equal to {@link #LAYOUTLIB_API_NOT_SPECIFIED} (0) if the layoutlib
* version isn't specified.
* <p/>
* The second integer is the revision for that given API. It is >= 0
* and works as a minor revision number, incremented for the same API level.
*
* @since sdk-repository-4.xsd and sdk-addon-2.xsd
*/
@Override
public Pair<Integer, Integer> getLayoutlibVersion() {
return mLayoutlibVersion;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((mLayoutlibVersion == null) ? 0 : mLayoutlibVersion.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof LayoutlibVersionMixin)) {
return false;
}
LayoutlibVersionMixin other = (LayoutlibVersionMixin) obj;
if (mLayoutlibVersion == null) {
if (other.mLayoutlibVersion != null) {
return false;
}
} else if (!mLayoutlibVersion.equals(other.mLayoutlibVersion)) {
return false;
}
return true;
}
}
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