IBuildProvider接口中定义了三个方法
/*
* Copyright (C) 2010 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.tradefed.build;
/**
* Responsible for providing info regarding the build under test.
*/
public interface IBuildProvider {
/**
* Retrieve the data for build under test.
*
* @return the {@link IBuildInfo} for build under test or <code>null</code> if no build is
* available for testing
* @throws BuildRetrievalError if build info failed to be retrieved due to an unexpected error
*/
public IBuildInfo getBuild() throws BuildRetrievalError;
/**
* Mark the given build as untested.
* <p/>
* Called in cases where TradeFederation has failed to complete testing on the build due to an
* environment problem.
*
* @param info the {@link IBuildInfo} to reset
*/
public void buildNotTested(IBuildInfo info);
/**
* Clean up any temporary build files.
*/
public void cleanUp(IBuildInfo info);
}
该类主要是为了提供IBuildInfo信息的。所以目光转到IBuildInfo接口中：
/*
* Copyright (C) 2010 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.tradefed.build;
import com.android.tradefed.device.ITestDevice;
import java.io.File;
import java.util.Collection;
import java.util.Map;
/**
* Holds information about the build under test.
*/
public interface IBuildInfo {
/**
* Default value when build ID is unknown.
*/
public final static String UNKNOWN_BUILD_ID = "-1";
/**
* Returns the unique identifier of build under test. Should never be null. Defaults to
* {@link #UNKNOWN_BUILD_ID}.
*/
public String getBuildId();
/**
* Return a unique name for the tests being run.
*/
public String getTestTag();
/**
* Return complete name for the build being tested.
* <p/>
* A common implementation is to construct the build target name from a combination of
* the build flavor and branch name. [ie (branch name)-(build flavor)]
*/
public String getBuildTargetName();
/**
* Optional method to return the type of build being tested.
* <p/>
* A common implementation for Android platform builds is to return
* (build product)-(build os)-(build variant).
* ie generic-linux-userdebug
*
* @return the build flavor or <code>null</code> if unset/not applicable
*/
public String getBuildFlavor();
/**
* @return the {@link ITestDevice} serial that this build was executed on. Returns <code>null
* </code> if no device is associated with this build.
*/
public String getDeviceSerial();
/**
* Set the build flavor.
*
* @param buildFlavor
*/
public void setBuildFlavor(String buildFlavor);
/**
* Optional method to return the source control branch that the build being tested was
* produced from.
*
* @return the build branch or <code>null</code> if unset/not applicable
*/
public String getBuildBranch();
/**
* Set the build branch
*
* @param branch the branch name
*/
public void setBuildBranch(String branch);
/**
* Set the {@link ITestDevice} serial associated with this build.
*
* @param serial the serial number of the {@link ITestDevice} that this build was executed with.
*/
public void setDeviceSerial(String serial);
/**
* Get a set of name-value pairs of additional attributes describing the build.
*
* @return a {@link Map} of build attributes. Will not be <code>null</code>, but may be empty.
*/
public Map<String, String> getBuildAttributes();
/**
* Add a build attribute
*
* @param attributeName the unique attribute name
* @param attributeValue the attribute value
*/
public void addBuildAttribute(String attributeName, String attributeValue);
/**
* Helper method to retrieve a file with given name.
* @param name
* @return the image file or <code>null</code> if not found
*/
public File getFile(String name);
/**
* Returns all {@link VersionedFile}s stored in this {@link BuildInfo}.
*/
public Collection<VersionedFile> getFiles();
/**
* Helper method to retrieve a file version with given name.
* @param name
* @return the image version or <code>null</code> if not found
*/
public String getVersion(String name);
/**
* Stores an file with given name in this build info.
*
* @param name the unique name of the file
* @param file the local {@link File}
* @param version the file version
*/
public void setFile(String name, File file, String version);
/**
* Clean up any temporary build files
*/
public void cleanUp();
/**
* Clones the {@link IBuildInfo} object.
*/
public IBuildInfo clone();
}
该接口中定义了一些方法都是跟属性相关的。事实上如今BuildInfo中。
/*
* Copyright (C) 2010 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.tradefed.build;
import com.android.tradefed.log.LogUtil.CLog;
import com.android.tradefed.util.FileUtil;
import com.android.tradefed.util.MultiMap;
import com.android.tradefed.util.UniqueMultiMap;
import com.google.common.base.Objects;
import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.Hashtable;
import java.util.Map;
/**
* Generic implementation of a {@link IBuildInfo}.
*/
public class BuildInfo implements IBuildInfo {
private String mBuildId = "0";
private String mTestTag = "stub";
private String mBuildTargetName = "stub";
private final UniqueMultiMap<String, String> mBuildAttributes =
new UniqueMultiMap<String, String>();
private Map<String, VersionedFile> mVersionedFileMap;
private String mBuildFlavor = null;
private String mBuildBranch = null;
private String mDeviceSerial = null;
/**
* Creates a {@link BuildInfo} using default attribute values.
*/
public BuildInfo() {
mVersionedFileMap = new Hashtable<String, VersionedFile>();
}
/**
* Creates a {@link BuildInfo}
*
* @param buildId the build id
* @param testTag the test tag name
* @param buildTargetName the build target name
*/
public BuildInfo(String buildId, String testTag, String buildTargetName) {
mBuildId = buildId;
mTestTag = testTag;
mBuildTargetName = buildTargetName;
mVersionedFileMap = new Hashtable<String, VersionedFile>();
}
/**
* Creates a {@link BuildInfo}, populated with attributes given in another build.
*
* @param buildToCopy
*/
BuildInfo(BuildInfo buildToCopy) {
this(buildToCopy.getBuildId(), buildToCopy.getTestTag(), buildToCopy.getBuildTargetName());
addAllBuildAttributes(buildToCopy);
try {
addAllFiles(buildToCopy);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* {@inheritDoc}
*/
@Override
public String getBuildId() {
return mBuildId;
}
/**
* {@inheritDoc}
*/
@Override
public String getTestTag() {
return mTestTag;
}
/**
* {@inheritDoc}
*/
@Override
public String getDeviceSerial() {
return mDeviceSerial;
}
/**
* {@inheritDoc}
*/
@Override
public Map<String, String> getBuildAttributes() {
return mBuildAttributes.getUniqueMap();
}
/**
* {@inheritDoc}
*/
@Override
public String getBuildTargetName() {
return mBuildTargetName;
}
/**
* {@inheritDoc}
*/
@Override
public void addBuildAttribute(String attributeName, String attributeValue) {
mBuildAttributes.put(attributeName, attributeValue);
}
/**
* Helper method to copy build attributes, branch, and flavor from other build.
*/
protected void addAllBuildAttributes(BuildInfo build) {
mBuildAttributes.putAll(build.getAttributesMultiMap());
setBuildFlavor(build.getBuildFlavor());
setBuildBranch(build.getBuildBranch());
}
protected MultiMap<String, String> getAttributesMultiMap() {
return mBuildAttributes;
}
/**
* Helper method to copy all files from the other build.
* <p>
* Creates new hardlinks to the files so that each build will have a unique file path to the
* file.
* </p>
*
* @throws IOException if an exception is thrown when creating the hardlinks.
*/
protected void addAllFiles(BuildInfo build) throws IOException {
for (Map.Entry<String, VersionedFile> fileEntry : build.getVersionedFileMap().entrySet()) {
File origFile = fileEntry.getValue().getFile();
File copyFile;
if (origFile.isDirectory()) {
copyFile = FileUtil.createTempDir(fileEntry.getKey());
FileUtil.recursiveHardlink(origFile, copyFile);
} else {
// Only using createTempFile to create a unique dest filename
copyFile = FileUtil.createTempFile(fileEntry.getKey(),
FileUtil.getExtension(origFile.getName()));
copyFile.delete();
FileUtil.hardlinkFile(origFile, copyFile);
}
setFile(fileEntry.getKey(), copyFile, fileEntry.getValue().getVersion());
}
}
protected Map<String, VersionedFile> getVersionedFileMap() {
return mVersionedFileMap;
}
/**
* {@inheritDoc}
*/
@Override
public File getFile(String name) {
VersionedFile fileRecord = mVersionedFileMap.get(name);
if (fileRecord != null) {
return fileRecord.getFile();
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public Collection<VersionedFile> getFiles() {
return mVersionedFileMap.values();
}
/**
* {@inheritDoc}
*/
@Override
public String getVersion(String name) {
VersionedFile fileRecord = mVersionedFileMap.get(name);
if (fileRecord != null) {
return fileRecord.getVersion();
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public void setFile(String name, File file, String version) {
if (mVersionedFileMap.containsKey(name)) {
CLog.e("Device build already contains a file for %s in thread %s", name,
Thread.currentThread().getName());
return;
}
mVersionedFileMap.put(name, new VersionedFile(file, version));
}
/**
* {@inheritDoc}
*/
@Override
public void cleanUp() {
for (VersionedFile fileRecord : mVersionedFileMap.values()) {
FileUtil.recursiveDelete(fileRecord.getFile());
}
mVersionedFileMap.clear();
}
/**
* {@inheritDoc}
*/
@Override
public IBuildInfo clone() {
BuildInfo copy = new BuildInfo(mBuildId, mTestTag, mBuildTargetName);
copy.addAllBuildAttributes(this);
try {
copy.addAllFiles(this);
} catch (IOException e) {
throw new RuntimeException(e);
}
copy.setBuildBranch(mBuildBranch);
copy.setBuildFlavor(mBuildFlavor);
return copy;
}
/**
* {@inheritDoc}
*/
@Override
public String getBuildFlavor() {
return mBuildFlavor;
}
/**
* {@inheritDoc}
*/
@Override
public void setBuildFlavor(String buildFlavor) {
mBuildFlavor = buildFlavor;
}
/**
* {@inheritDoc}
*/
@Override
public String getBuildBranch() {
return mBuildBranch;
}
/**
* {@inheritDoc}
*/
@Override
public void setBuildBranch(String branch) {
mBuildBranch = branch;
}
/**
* {@inheritDoc}
*/
@Override
public void setDeviceSerial(String serial) {
mDeviceSerial = serial;
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
return Objects.hashCode(mBuildAttributes, mBuildBranch, mBuildFlavor, mBuildId,
mBuildTargetName, mTestTag, mDeviceSerial);
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
BuildInfo other = (BuildInfo) obj;
return Objects.equal(mBuildAttributes, other.mBuildAttributes) &&
Objects.equal(mBuildBranch, other.mBuildBranch) &&
Objects.equal(mBuildFlavor, other.mBuildFlavor) &&
Objects.equal(mBuildId, other.mBuildId) &&
Objects.equal(mBuildTargetName, other.mBuildTargetName) &&
Objects.equal(mTestTag, other.mTestTag) &&
Objects.equal(mDeviceSerial, other.mDeviceSerial);
}
}
提供的属性有build的id号，build的目标名称。測试标签。根文件夹，build的分支，測试类型。
关机要理解build是什么意思，我还不是太了解build这个意义，临时先用build来取代吧，等我了解了。再做解释。
在原生的cts中。使用的是CtsBuildProvider。非常easy的就是把cts的根文件夹属性设置上，然后是buildId。測试目标。build命令设置好就返回了。可是你假设要加入你自己的实现类，肯定不是简单的这么一点代码。比方你要做的測试时測试你的系统，那么这里面提供的东西就多了。首先你的系统存放的地址，分支号，要build的版本等等都要在这里面获取并存到buildinfo对象中返回给TestInvocation中。
/*
* Copyright (C) 2010 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.cts.tradefed.build;
import com.android.tradefed.build.FolderBuildInfo;
import com.android.tradefed.build.IBuildInfo;
import com.android.tradefed.build.IBuildProvider;
import com.android.tradefed.build.IFolderBuildInfo;
import com.android.tradefed.config.Option;
import java.io.File;
/**
* A simple {@link IBuildProvider} that uses a pre-existing CTS install.
*/
public class CtsBuildProvider implements IBuildProvider {
@Option(name="cts-install-path", description="the path to the cts installation to use")
private String mCtsRootDirPath = System.getProperty("CTS_ROOT");
public static final String CTS_BUILD_VERSION = "4.4_r1.95";
/**
* {@inheritDoc}
*/
@Override
public IBuildInfo getBuild() {
if (mCtsRootDirPath == null) {
throw new IllegalArgumentException("Missing --cts-install-path");
}
IFolderBuildInfo ctsBuild = new FolderBuildInfo(CTS_BUILD_VERSION, "cts", "cts");
ctsBuild.setRootDir(new File(mCtsRootDirPath));
return ctsBuild;
}
/**
* {@inheritDoc}
*/
@Override
public void buildNotTested(IBuildInfo info) {
// ignore
}
/**
* {@inheritDoc}
*/
@Override
public void cleanUp(IBuildInfo info) {
// ignore
}
}