1 files changed, 85 insertions, 0 deletions
diff --git a/container-core/src/main/java/com/yahoo/container/config/testutil/TestUtil.java b/container-core/src/main/java/com/yahoo/container/config/testutil/TestUtil.java
new file mode 100644
index 00000000000..dbf8be8e1dc
--- /dev/null
+++ b/container-core/src/main/java/com/yahoo/container/config/testutil/TestUtil.java
@@ -0,0 +1,85 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.container.config.testutil;
+
+import com.yahoo.container.core.config.HandlersConfigurerDi;
+
+import java.io.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * @author gjoranv
+ */
+public class TestUtil {
+
+    public static void createComponentsConfig(String configFile,
+                                              String componentsFile,
+                                              String componentType) throws IOException {
+        createComponentsConfig(configFile, componentsFile, componentType, false);
+    }
+
+    /**
+     * Copies the component ids from another config, e.g. 'handlers' to a 'components' array in a new components file,
+     * to avoid a manually written 'components' file for tests where the bundle spec is given by the component id.
+     * @param configFile  Full path to the original config file, e.g. 'handlers'
+     * @param componentsFile  Full path to the new 'components' file
+     * @param componentType   The type of component, e.g. 'handler'
+     * @param append  'true' will append to an already existing 'componentsFile'
+     */
+    public static void createComponentsConfig(String configFile,
+                                              String componentsFile,
+                                              String componentType,
+                                              boolean append) throws IOException {
+        StringBuilder buf = new StringBuilder();
+        String line;
+        int i = 0;
+        if (append) {
+            final Pattern p = Pattern.compile("^[a-z]+" + "\\[\\d+\\]\\.id (.+)");
+            BufferedReader reader = new BufferedReader(new InputStreamReader(
+                    new FileInputStream(new File(componentsFile)), "UTF-8"));
+            while ((line = reader.readLine()) != null) {
+                Matcher m = p.matcher(line);
+                if (m.matches() && !m.group(1).equals(HandlersConfigurerDi.RegistriesHack.class.getName())) {
+                    buf.append("components[").append(i).append("].id ").append(m.group(1)).append("\n");
+                    i++;
+                }
+            }
+            reader.close();
+        }
+        BufferedReader reader = new BufferedReader(new InputStreamReader(
+                new FileInputStream(new File(configFile)), "UTF-8"));
+        final Pattern component = Pattern.compile("^" + componentType + "\\[\\d+\\]\\.id (.+)");
+        while ((line = reader.readLine()) != null) {
+            Matcher m = component.matcher(line);
+            if (m.matches()) {
+                buf.append("components[").append(i).append("].id ").append(m.group(1)).append("\n");
+                i++;
+            }
+        }
+        buf.append("components[").append(i).append("].id ").
+                append(HandlersConfigurerDi.RegistriesHack.class.getName()).append("\n");
+        i++;
+        reader.close();
+        buf.insert(0, "components["+i+"]\n");
+
+        Writer writer = new OutputStreamWriter(new FileOutputStream(new File(componentsFile)), "UTF-8");
+        writer.write(buf.toString());
+        writer.flush();
+        writer.close();
+    }
+
+    /**
+     * Copies src file to dst file. If the dst file does not exist, it is created.
+     */
+    public static void copyFile(String srcName, File dstFile) throws IOException {
+        InputStream src = new FileInputStream(new File(srcName));
+        OutputStream dst = new FileOutputStream(dstFile);
+        byte[] buf = new byte[1024];
+        int len;
+        while ((len = src.read(buf)) > 0) {
+            dst.write(buf, 0, len);
+        }
+        src.close();
+        dst.close();
+    }
+}