From 2318c606a66465142b76727b40588f5f69e9ac47 Mon Sep 17 00:00:00 2001
From: paweldomas <pawel.domas@jitsi.org>
Date: Tue, 20 Jan 2015 12:06:30 +0100
Subject: [PATCH] Moves ConfigUtils and StringCompiler from videobridge to
libjitsi util package, so that they can be reused in other Jitsi projects.
---
src/org/jitsi/util/ConfigUtils.java | 70 ++++++++++++
src/org/jitsi/util/StringCompiler.java | 144 +++++++++++++++++++++++++
2 files changed, 214 insertions(+)
create mode 100644 src/org/jitsi/util/ConfigUtils.java
create mode 100644 src/org/jitsi/util/StringCompiler.java
diff --git a/src/org/jitsi/util/ConfigUtils.java b/src/org/jitsi/util/ConfigUtils.java
new file mode 100644
index 00000000..c002a5c2
--- /dev/null
+++ b/src/org/jitsi/util/ConfigUtils.java
@@ -0,0 +1,70 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package org.jitsi.util;
+
+import org.jitsi.service.configuration.*;
+
+import java.io.*;
+
+/**
+ * @author George Politis
+ */
+public class ConfigUtils
+{
+ /**
+ * Gets an absolute path in the form of <tt>File</tt> from an absolute or
+ * relative <tt>path</tt> specified in the form of a <tt>String</tt>. If
+ * <tt>path</tt> is relative, it is resolved against
+ * <tt>ConfigurationService.PNAME_SC_HOME_DIR_LOCATION</tt> and
+ * <tt>ConfigurationService.PNAME_SC_HOME_DIR_NAME</tt>, <tt>user.home</tt>,
+ * or the current working directory.
+ *
+ * @param path the absolute or relative path in the form of <tt>String</tt>
+ * for/from which an absolute path in the form of <tt>File</tt> is to be
+ * returned
+ * @param cfg the <tt>ConfigurationService</tt> to be employed by the method
+ * (invocation) if necessary
+ * @return an absolute path in the form of <tt>File</tt> for/from the
+ * specified <tt>path</tt>
+ */
+ public static File getAbsoluteFile(String path, ConfigurationService cfg)
+ {
+ File file = new File(path);
+
+ if (!file.isAbsolute())
+ {
+ String scHomeDirLocation, scHomeDirName;
+
+ if (cfg == null)
+ {
+ scHomeDirLocation
+ = System.getProperty(
+ ConfigurationService.PNAME_SC_HOME_DIR_LOCATION);
+ scHomeDirName
+ = System.getProperty(
+ ConfigurationService.PNAME_SC_HOME_DIR_NAME);
+ }
+ else
+ {
+ scHomeDirLocation = cfg.getScHomeDirLocation();
+ scHomeDirName = cfg.getScHomeDirName();
+ }
+ if (scHomeDirLocation == null)
+ {
+ scHomeDirLocation = System.getProperty("user.home");
+ if (scHomeDirLocation == null)
+ scHomeDirLocation = ".";
+ }
+ if (scHomeDirName == null)
+ scHomeDirName = ".";
+ file
+ = new File(new File(scHomeDirLocation, scHomeDirName), path)
+ .getAbsoluteFile();
+ }
+ return file;
+ }
+}
diff --git a/src/org/jitsi/util/StringCompiler.java b/src/org/jitsi/util/StringCompiler.java
new file mode 100644
index 00000000..8b4d5fb7
--- /dev/null
+++ b/src/org/jitsi/util/StringCompiler.java
@@ -0,0 +1,144 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package org.jitsi.util;
+
+import java.lang.reflect.*;
+import java.util.*;
+import java.util.regex.*;
+
+/**
+ * @author George Politis
+ *
+ */
+public class StringCompiler
+{
+ private final Map<String, Object> bindings;
+
+ public StringCompiler(Map<String, Object> bindings)
+ {
+ this.bindings = bindings;
+ }
+
+ public StringCompiler()
+ {
+ this.bindings = new HashMap<String, Object>();
+ }
+
+ public void bind(String key, Object value)
+ {
+ this.bindings.put(key, value);
+ }
+
+ private static final Pattern p = Pattern.compile("\\{([^\\}]+)\\}");
+
+ private StringBuffer sb;
+
+ public StringCompiler c(String s)
+ {
+ if (StringUtils.isNullOrEmpty(s))
+ {
+ return this;
+ }
+
+ Matcher m = p.matcher(s);
+ sb = new StringBuffer();
+
+ while (m.find()) {
+ String key = m.group(1);
+ String value = getValue(key);
+ m.appendReplacement(sb, value);
+ }
+
+ m.appendTail(sb);
+
+ return this;
+ }
+
+ @Override
+ public String toString()
+ {
+ return (sb == null) ? "" : sb.toString();
+ }
+
+ private String getValue(String key)
+ {
+ if (StringUtils.isNullOrEmpty(key))
+ throw new IllegalArgumentException("key");
+
+ String value = "";
+
+ String[] path = key.split("\\.");
+
+ // object graph frontier.
+ Object obj = null;
+
+ for (int i = 0; i < path.length; i++)
+ {
+ String identifier = path[i];
+
+ if (i == 0)
+ {
+ // Init.
+ if (bindings.containsKey(identifier))
+ {
+ obj = bindings.get(identifier);
+ }
+ else
+ {
+ break;
+ }
+ }
+ else
+ {
+ if (obj != null)
+ {
+ // Decent the object graph.
+ Class<?> c = obj.getClass();
+ Field f;
+
+ try
+ {
+ f = c.getDeclaredField(identifier);
+ }
+ catch (NoSuchFieldException e)
+ {
+ break;
+ }
+
+ if (!f.isAccessible())
+ {
+ f.setAccessible(true);
+ }
+
+ try
+ {
+ obj = f.get(obj);
+ }
+ catch (IllegalAccessException e)
+ {
+ break;
+ }
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ if (i == path.length - 1)
+ {
+ // Stop the decent.
+ if (obj != null)
+ {
+ value = obj.toString();
+ }
+ }
+ }
+
+ return value;
+ }
+}
--
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