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/*
* Copyright (C) 2013 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.sched.util.codec;
import com.android.sched.util.config.ConfigurationError;
import com.android.sched.util.file.FileOrDirectory.ChangePermission;
import com.android.sched.util.file.FileOrDirectory.Existence;
import com.android.sched.util.file.FileOrDirectory.Permission;
import com.android.sched.util.file.OutputStreamFile;
import com.android.sched.util.file.OutputStreamFile.StandardOutputKind;
import com.android.sched.util.location.Location;
import java.io.IOException;
import javax.annotation.Nonnull;
/**
* This {@link OutputStreamCodec} is used to create an instance of {@link OutputStreamFile}.
*/
public class OutputStreamCodec extends StreamCodec<OutputStreamFile> {
private boolean append = false;
public OutputStreamCodec(@Nonnull Existence existence) {
super(existence, Permission.WRITE);
}
@Nonnull
public OutputStreamCodec changeOwnerPermission() {
setChangePermission(ChangePermission.OWNER);
return this;
}
@Nonnull
public OutputStreamCodec changeAllPermission() {
setChangePermission(ChangePermission.EVERYBODY);
return this;
}
@Nonnull
public OutputStreamCodec allowStandardOutputOrError() {
this.allowStandardIO = true;
this.allowStandardError = true;
return this;
}
@Nonnull
public OutputStreamCodec allowStandardOutput() {
this.allowStandardIO = true;
return this;
}
@Nonnull
public OutputStreamCodec allowStandardError() {
this.allowStandardError = true;
return this;
}
@Nonnull
public OutputStreamCodec makeAppendable() {
this.append = true;
return this;
}
@Override
@Nonnull
public String formatValue(@Nonnull OutputStreamFile stream) {
if (stream.isStandard()) {
if (stream.getLocation().equals(StandardOutputKind.STANDARD_OUTPUT.getLocation())) {
return STANDARD_IO_NAME;
} else {
assert stream.getLocation().equals(StandardOutputKind.STANDARD_ERROR.getLocation());
return STANDARD_ERROR_NAME;
}
} else {
return stream.getPath();
}
}
@Override
public void checkValue(@Nonnull CodecContext context, @Nonnull OutputStreamFile stream)
throws CheckingException {
Location location = stream.getLocation();
if (location.equals(StandardOutputKind.STANDARD_OUTPUT.getLocation()) && !allowStandardIO) {
throw new CheckingException("Standard output is not allowed");
} else if (location.equals(StandardOutputKind.STANDARD_ERROR.getLocation())
&& !allowStandardError) {
throw new CheckingException("Standard error is not allowed");
}
}
@Override
@Nonnull
public OutputStreamFile parseString(@Nonnull CodecContext context, @Nonnull String string) {
try {
return checkString(context, string);
} catch (ParsingException e) {
throw new ConfigurationError(e);
}
}
@Override
@Nonnull
public OutputStreamFile checkString(@Nonnull CodecContext context, @Nonnull String string)
throws ParsingException {
if (string.equals(STANDARD_IO_NAME)) {
if (!allowStandardIO) {
throw new ParsingException("Standard output can not be used");
}
return new OutputStreamFile(context.getStandardOutput(),
StandardOutputKind.STANDARD_OUTPUT.getLocation());
} else if (string.equals(STANDARD_ERROR_NAME)) {
if (!allowStandardError) {
throw new ParsingException("Standard error can not be used");
}
return new OutputStreamFile(context.getStandardError(),
StandardOutputKind.STANDARD_ERROR.getLocation());
} else {
try {
return new OutputStreamFile(context.getWorkingDirectory(),
string,
context.getRunnableHooks(),
existence,
change,
append);
} catch (IOException e) {
throw new ParsingException(e.getMessage(), e);
}
}
}
}
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