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/****************************************************************************
**
** Copyright (C) 2015 Jake Petroules.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qbs.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
package io.qt.qbs;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.List;
/**
* This uses a custom JSON implementation because the Java Standard Library does
* not yet have native support for JSON, and only minimal support is required
* here.
*/
public class ArtifactListJsonWriter implements ArtifactListWriter {
private static final int TAB_WIDTH = 4;
// based on escapeString from qtbase/qjsonwriter.cpp
private static String escapeString(String s) {
String out = "";
for (int i = 0; i < s.length();) {
int u = s.codePointAt(i);
// unpaired surrogate
if (u >= Character.MIN_SURROGATE && u <= Character.MAX_SURROGATE) {
out += "\ufffd";
i += Character.charCount(u);
continue;
}
if (u < 0x80) {
if (u < 0x20 || u == 0x22 || u == 0x5c) {
out += "\\";
switch (u) {
case 0x22:
out += "\"";
break;
case 0x5c:
out += "\\";
break;
case 0x8:
out += "b";
break;
case 0xc:
out += "f";
break;
case 0xa:
out += "n";
break;
case 0xd:
out += "r";
break;
case 0x9:
out += "t";
break;
default:
out += "u";
out += "0";
out += "0";
String hex = Integer.toHexString(u);
if (hex.length() == 1)
out += "0";
out += hex;
break;
}
} else {
out += s.substring(i, i + Character.charCount(u));
}
} else {
out += s.substring(i, i + Character.charCount(u));
}
i += Character.charCount(u);
}
return out;
}
private static void writeString(PrintStream printWriter, String s) {
printWriter.print("\"");
printWriter.print(escapeString(s));
printWriter.print("\"");
}
private static void writeIndent(PrintStream printWriter, int level) {
for (int i = 0; i < level * TAB_WIDTH; ++i) {
printWriter.print(" ");
}
}
private static void writeArtifact(Artifact artifact,
PrintStream printWriter, int indentLevel, Boolean comma) {
writeIndent(printWriter, indentLevel++);
printWriter.print("{\n");
writeIndent(printWriter, indentLevel);
writeString(printWriter, "filePath");
printWriter.print(": ");
writeString(printWriter, artifact.getFilePath());
printWriter.println(",");
writeIndent(printWriter, indentLevel);
writeString(printWriter, "fileTags");
printWriter.print(": [");
for (int i = 0; i < artifact.getFileTags().size(); ++i) {
writeString(printWriter, artifact.getFileTags().get(i));
if (i != artifact.getFileTags().size() - 1)
printWriter.print(", ");
}
printWriter.println("]");
writeIndent(printWriter, --indentLevel);
printWriter.println("}" + (comma ? "," : ""));
}
@Override
public void write(List<Artifact> artifacts, OutputStream outputStream)
throws IOException {
PrintStream printWriter = new PrintStream(outputStream);
printWriter.print("[\n");
for (int i = 0; i < artifacts.size(); ++i) {
writeArtifact(artifacts.get(i), printWriter, 1,
i != artifacts.size() - 1);
}
printWriter.println("]");
}
}
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