com.google.api.tools.framework.tools.util.OutputUtil Maven / Gradle / Ivy
/*
* Copyright (C) 2016 Google 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.google.api.tools.framework.tools.util;
import com.google.common.base.Preconditions;
import com.google.common.io.Files;
import com.google.protobuf.Message;
import com.google.protobuf.TextFormat;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Utility functions for writing various objects to an output file.
*/
public class OutputUtil {
private static final Pattern SERVICE_BASE_NAME_PATTERN = Pattern.compile(
"^(?.+)\\.sandbox\\.googleapis\\.com$"
+ "|^(?.+)\\.corp\\.googleapis\\.com$"
+ "|^(?.+)\\.googleapis\\.com$");
/**
* Writes string content to a file.
*/
public static void writeToFile(File outputFile, String content) throws IOException {
Preconditions.checkNotNull(outputFile);
Preconditions.checkNotNull(content);
try (BufferedWriter outWriter = Files.newWriter(outputFile, StandardCharsets.UTF_8)) {
outWriter.write(content);
}
}
/**
* Writes a proto to a file in text format.
*/
public static void writeProtoTextToFile(File outputFile, Message proto)
throws IOException {
try (BufferedWriter outWriter = Files.newWriter(outputFile, StandardCharsets.UTF_8)) {
TextFormat.print(proto, outWriter);
}
}
/**
* Writes a proto to a file in binary format.
*/
public static void writeProtoBinaryToFile(File outputFile, Message proto)
throws IOException {
try (OutputStream prodOutputStream = new FileOutputStream(outputFile)) {
proto.writeTo(prodOutputStream);
}
}
/**
* Returns the service base name as derived from the full service name, or null if derivation is
* not successful.
*/
public static String getServiceBaseName(String name) {
Matcher matcher = SERVICE_BASE_NAME_PATTERN.matcher(name);
if (!matcher.matches()) {
int firstDotIndex = name.indexOf('.');
if (firstDotIndex > 0){
return name.substring(0, firstDotIndex);
}
return null;
}
name = matcher.group("sandboxed");
if (name != null) {
return name;
}
name = matcher.group("corp");
if (name != null) {
return name;
}
return matcher.group("regular");
}
}