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/*
* 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.jack.incremental;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.Collections2;
import com.android.jack.library.FileType;
import com.android.jack.library.FileTypeDoesNotExistException;
import com.android.jack.library.LibraryIOException;
import com.android.jack.library.OutputJackLibrary;
import com.android.sched.util.file.CannotCreateFileException;
import com.android.sched.util.file.NotFileOrDirectoryException;
import com.android.sched.vfs.VPath;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Collection;
import javax.annotation.Nonnull;
/**
* Write logs of incremental runs into a section logs of the library representing the incremental
* state.
*/
class IncrementalLogWriter {
@Nonnull
static final VPath vpath = new VPath("logs", '/');
@Nonnull
private final PrintStream ps;
@Nonnull
private final OutputJackLibrary library;
IncrementalLogWriter(@Nonnull OutputJackLibrary library, @Nonnull File incrementalFolder)
throws LibraryIOException {
this.library = library;
try {
library.getFile(FileType.LOG, vpath);
} catch (FileTypeDoesNotExistException e) {
try {
library.createFile(FileType.LOG, vpath);
} catch (CannotCreateFileException e1) {
throw new LibraryIOException(library.getLocation(), e1);
} catch (NotFileOrDirectoryException e1) {
throw new LibraryIOException(library.getLocation(), e1);
}
}
File logFile = new File(incrementalFolder,
FileType.LOG.buildFileVPath(vpath).getPathAsString(File.separatorChar));
try {
ps = new PrintStream(new FileOutputStream(logFile, true));
writeString("***");
} catch (FileNotFoundException e) {
// File already creates by using VFS
throw new AssertionError();
}
}
void writeFiles(@Nonnull String prefixStr, @Nonnull Collection<File> files) {
writeStrings(prefixStr, Collections2.transform(files, new Function<File, String>() {
@Override
public String apply(File file) {
return file.getPath();
}
}));
}
void writeStrings(@Nonnull String prefixStr, @Nonnull Collection<String> strings) {
ps.print(prefixStr);
ps.print(": ");
ps.print(Joiner.on(",").useForNull("").join(strings));
ps.println();
}
void close() {
ps.close();
}
void writeString(@Nonnull String str) {
ps.print(str);
ps.println();
}
}
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