test/jdk/tools/jpackage/helpers/jdk/jpackage/test/CfgFile.java
branchJDK-8200758-branch
changeset 58648 3bf53ffa9ae7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/tools/jpackage/helpers/jdk/jpackage/test/CfgFile.java	Wed Oct 16 10:32:08 2019 -0400
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package jdk.jpackage.test;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+
+public final class CfgFile {
+    public String getValue(String section, String key) {
+        Objects.requireNonNull(section);
+        Objects.requireNonNull(key);
+
+        Map<String, String> entries = data.get(section);
+        TKit.assertTrue(entries != null, String.format(
+                "Check section [%s] is found in [%s] cfg file", section, id));
+
+        String value = entries.get(key);
+        TKit.assertNotNull(value, String.format(
+                "Check key [%s] is found in [%s] section of [%s] cfg file", key,
+                section, id));
+
+        return value;
+    }
+
+    private CfgFile(Map<String, Map<String, String>> data, String id) {
+        this.data = data;
+        this.id = id;
+    }
+
+    public static CfgFile readFromFile(Path path) throws IOException {
+        TKit.trace(String.format("Read [%s] jpackage cfg file", path));
+
+        final Pattern sectionBeginRegex = Pattern.compile( "\\s*\\[([^]]*)\\]\\s*");
+        final Pattern keyRegex = Pattern.compile( "\\s*([^=]*)=(.*)" );
+
+        Map<String, Map<String, String>> result = new HashMap<>();
+
+        String currentSectionName = null;
+        Map<String, String> currentSection = new HashMap<>();
+        for (String line : Files.readAllLines(path)) {
+            Matcher matcher = sectionBeginRegex.matcher(line);
+            if (matcher.find()) {
+                if (currentSectionName != null) {
+                    result.put(currentSectionName, Collections.unmodifiableMap(
+                            new HashMap<>(currentSection)));
+                }
+                currentSectionName = matcher.group(1);
+                currentSection.clear();
+                continue;
+            }
+
+            matcher = keyRegex.matcher(line);
+            if (matcher.find()) {
+                currentSection.put(matcher.group(1), matcher.group(2));
+                continue;
+            }
+        }
+
+        if (!currentSection.isEmpty()) {
+            result.put("", Collections.unmodifiableMap(currentSection));
+        }
+
+        return new CfgFile(Collections.unmodifiableMap(result), path.toString());
+    }
+
+    private final Map<String, Map<String, String>> data;
+    private final String id;
+}