| /* |
| * Copyright (C) 2015 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.tools.idea.sdk.remote.internal.packages; |
| |
| import com.android.annotations.NonNull; |
| import com.android.annotations.Nullable; |
| import com.android.sdklib.repository.PkgProps; |
| import com.android.tools.idea.sdk.remote.internal.sources.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 { |
| public static final int LAYOUTLIB_API_NOT_SPECIFIED = 0; |
| public static final int LAYOUTLIB_REV_NOT_SPECIFIED = 0; |
| |
| /** |
| * 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. |
| * <p/> |
| * 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 = RemotePackageParserUtils.findChildElement(pkgNode, RepoConstants.NODE_LAYOUT_LIB); |
| |
| if (layoutlibNode != null) { |
| api = RemotePackageParserUtils.getXmlInt(layoutlibNode, RepoConstants.NODE_API, 0); |
| rev = RemotePackageParserUtils.getXmlInt(layoutlibNode, RepoConstants.NODE_REVISION, 0); |
| } |
| |
| mLayoutlibVersion = Pair.of(api, rev); |
| } |
| |
| /** |
| * 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()); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + 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.equals(other.mLayoutlibVersion)) { |
| return false; |
| } |
| return true; |
| } |
| } |