/*
* Copyright 2015-present Facebook, Inc.
*
* 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.facebook.buck.json;
import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.step.ExecutionContext;
import com.facebook.buck.step.Step;
import com.facebook.buck.step.StepExecutionResult;
import com.google.common.base.Function;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Ordering;
import java.io.IOException;
import java.nio.file.Path;
import javax.annotation.Nullable;
public class JsonConcatenateStep implements Step {
private final ProjectFilesystem filesystem;
private final String shortName;
private final String description;
private ImmutableSortedSet<Path> inputs;
private Path output;
public JsonConcatenateStep(
ProjectFilesystem filesystem,
ImmutableSortedSet<Path> inputs,
Path output,
String shortName,
String description) {
this.filesystem = filesystem;
this.inputs = inputs;
this.output = output;
this.shortName = shortName;
this.description = description;
}
@Override
public StepExecutionResult execute(final ExecutionContext context)
throws IOException, InterruptedException {
ImmutableSortedSet<Path> filesToConcatenate =
FluentIterable.from(this.inputs)
.transform(
new Function<Path, Path>() {
@Nullable
@Override
public Path apply(Path input) {
return filesystem.getRootPath().resolve(input);
}
})
.toSortedSet(Ordering.natural());
Path destination = filesystem.getRootPath().resolve(output);
new JsonConcatenator(filesToConcatenate, destination, filesystem).concatenate();
return StepExecutionResult.SUCCESS;
}
@Override
public String getShortName() {
return shortName;
}
@Override
public String getDescription(ExecutionContext context) {
return description;
}
}