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author | Xavier Ducrohet <xav@android.com> | 2011-03-17 18:52:22 -0700 |
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committer | Xavier Ducrohet <xav@android.com> | 2011-03-17 19:09:22 -0700 |
commit | 026ba97e98e0527d910e15c4e1512893a777a8d2 (patch) | |
tree | fb4dd61fcdf82f41aaadd5528091c38c79604454 /ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java | |
parent | 6aa6ce67dc85ea1d928a607d292d2c19bc2e2307 (diff) | |
download | sdk-026ba97e98e0527d910e15c4e1512893a777a8d2.zip sdk-026ba97e98e0527d910e15c4e1512893a777a8d2.tar.gz sdk-026ba97e98e0527d910e15c4e1512893a777a8d2.tar.bz2 |
Move classes to ide-common
ResourceFolder/File and children classes (single/multi file)
ResourceItem and children classes
ResourceRepository (base and framework, project stays in ADT for now)
All the ResourceQualifiers and FolderConfiguration
Change-Id: I5adc9bdc4886a8fa0ab44860763d594cf7af4bd5
Diffstat (limited to 'ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java')
-rw-r--r-- | ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java b/ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java new file mode 100644 index 0000000..c7cef97 --- /dev/null +++ b/ide_common/src/com/android/ide/common/resources/configuration/VersionQualifier.java @@ -0,0 +1,189 @@ +/* + * Copyright (C) 2009 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.ide.common.resources.configuration; + +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +/** + * Resource Qualifier for Platform Version. + */ +public final class VersionQualifier extends ResourceQualifier { + /** Default pixel density value. This means the property is not set. */ + private final static int DEFAULT_VERSION = -1; + + private final static Pattern sCountryCodePattern = Pattern.compile("^v(\\d+)$");//$NON-NLS-1$ + + private int mVersion = DEFAULT_VERSION; + + public static final String NAME = "Platform Version"; + + /** + * Creates and returns a qualifier from the given folder segment. If the segment is incorrect, + * <code>null</code> is returned. + * @param segment the folder segment from which to create a qualifier. + * @return a new {@link VersionQualifier} object or <code>null</code> + */ + public static VersionQualifier getQualifier(String segment) { + Matcher m = sCountryCodePattern.matcher(segment); + if (m.matches()) { + String v = m.group(1); + + int code = -1; + try { + code = Integer.parseInt(v); + } catch (NumberFormatException e) { + // looks like the string we extracted wasn't a valid number. + return null; + } + + VersionQualifier qualifier = new VersionQualifier(); + qualifier.mVersion = code; + return qualifier; + } + + return null; + } + + /** + * Returns the folder name segment for the given value. This is equivalent to calling + * {@link #toString()} on a {@link VersionQualifier} object. + * @param version the value of the qualifier, as returned by {@link #getVersion()}. + */ + public static String getFolderSegment(int version) { + if (version != DEFAULT_VERSION) { + return String.format("v%1$d", version); //$NON-NLS-1$ + } + + return ""; //$NON-NLS-1$ + } + + public VersionQualifier(int apiLevel) { + mVersion = apiLevel; + } + + public VersionQualifier() { + //pass + } + + public int getVersion() { + return mVersion; + } + + @Override + public String getName() { + return NAME; + } + + @Override + public String getShortName() { + return "Version"; + } + + @Override + public boolean isValid() { + return mVersion != DEFAULT_VERSION; + } + + @Override + public boolean hasFakeValue() { + return false; + } + + @Override + public boolean checkAndSet(String value, FolderConfiguration config) { + VersionQualifier qualifier = getQualifier(value); + if (qualifier != null) { + config.setVersionQualifier(qualifier); + return true; + } + + return false; + } + + @Override + public boolean equals(Object qualifier) { + if (qualifier instanceof VersionQualifier) { + return mVersion == ((VersionQualifier)qualifier).mVersion; + } + + return false; + } + + @Override + public boolean isMatchFor(ResourceQualifier qualifier) { + if (qualifier instanceof VersionQualifier) { + // it is considered a match if the api level is equal or lower to the given qualifier + return mVersion <= ((VersionQualifier) qualifier).mVersion; + } + + return false; + } + + @Override + public boolean isBetterMatchThan(ResourceQualifier compareTo, ResourceQualifier reference) { + if (compareTo == null) { + return true; + } + + VersionQualifier compareQ = (VersionQualifier)compareTo; + VersionQualifier referenceQ = (VersionQualifier)reference; + + if (compareQ.mVersion == referenceQ.mVersion) { + // what we have is already the best possible match (exact match) + return false; + } else if (mVersion == referenceQ.mVersion) { + // got new exact value, this is the best! + return true; + } else { + // in all case we're going to prefer the higher version (since they have been filtered + // to not be too high + return mVersion > compareQ.mVersion; + } + } + + @Override + public int hashCode() { + return mVersion; + } + + /** + * Returns the string used to represent this qualifier in the folder name. + */ + @Override + public String getFolderSegment() { + return getFolderSegment(mVersion); + } + + @Override + public String getShortDisplayValue() { + if (mVersion != DEFAULT_VERSION) { + return String.format("API %1$d", mVersion); + } + + return ""; //$NON-NLS-1$ + } + + @Override + public String getLongDisplayValue() { + if (mVersion != DEFAULT_VERSION) { + return String.format("API Level %1$d", mVersion); + } + + return ""; //$NON-NLS-1$ + } +} |