Upate logging to use LogUtil

This CL replaces all calls to Log.* with calls to LogUtil.*.

Bug: 13172967
Change-Id: I649e2c4f74f9d74d046eddc777e192a066882520
diff --git a/src/com/android/telecomm/Log.java b/src/com/android/telecomm/Log.java
new file mode 100644
index 0000000..73892cd
--- /dev/null
+++ b/src/com/android/telecomm/Log.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2014, The Android Open Source Project
+ *
+ * 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.android.telecomm;
+
+import java.util.IllegalFormatException;
+import java.util.Locale;
+
+/**
+ * Manages logging for the entire module.
+ */
+public class Log {
+
+    // Generic tag for all In Call logging
+    private static final String TAG = "Telecomm";
+
+    public static final boolean FORCE_LOGGING = true; /* STOP SHIP if true */
+    public static final boolean DEBUG = isLoggable(android.util.Log.DEBUG);
+    public static final boolean INFO = isLoggable(android.util.Log.INFO);
+    public static final boolean VERBOSE = isLoggable(android.util.Log.VERBOSE);
+    public static final boolean WARN = isLoggable(android.util.Log.WARN);
+    public static final boolean ERROR = isLoggable(android.util.Log.ERROR);
+
+    private Log() {}
+
+    public static boolean isLoggable(int level) {
+        return FORCE_LOGGING || android.util.Log.isLoggable(TAG, level);
+    }
+
+    public static void d(String prefix, String format, Object... args) {
+        if (DEBUG) {
+            android.util.Log.d(TAG, buildMessage(prefix, format, args));
+        }
+    }
+
+    public static void d(Object objectPrefix, String format, Object... args) {
+        if (DEBUG) {
+            android.util.Log.d(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args));
+        }
+    }
+
+    public static void i(String prefix, String format, Object... args) {
+        if (INFO) {
+            android.util.Log.i(TAG, buildMessage(prefix, format, args));
+        }
+    }
+
+    public static void i(Object objectPrefix, String format, Object... args) {
+        if (INFO) {
+            android.util.Log.i(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args));
+        }
+    }
+
+    public static void v(String prefix, String format, Object... args) {
+        if (VERBOSE) {
+            android.util.Log.v(TAG, buildMessage(prefix, format, args));
+        }
+    }
+
+    public static void v(Object objectPrefix, String format, Object... args) {
+        if (VERBOSE) {
+            android.util.Log.v(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args));
+        }
+    }
+
+    public static void w(String prefix, String format, Object... args) {
+        if (WARN) {
+            android.util.Log.w(TAG, buildMessage(prefix, format, args));
+        }
+    }
+
+    public static void w(Object objectPrefix, String format, Object... args) {
+        if (WARN) {
+            android.util.Log.w(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args));
+        }
+    }
+
+    public static void e(String prefix, Throwable tr, String format, Object... args) {
+        if (ERROR) {
+            android.util.Log.e(TAG, buildMessage(prefix, format, args), tr);
+        }
+    }
+
+    public static void e(Object objectPrefix, Throwable tr, String format, Object... args) {
+        if (ERROR) {
+            android.util.Log.e(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args),
+                    tr);
+        }
+    }
+
+    public static void wtf(String prefix, Throwable tr, String format, Object... args) {
+        android.util.Log.wtf(TAG, buildMessage(prefix, format, args), tr);
+    }
+
+    public static void wtf(Object objectPrefix, Throwable tr, String format, Object... args) {
+        android.util.Log.wtf(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args),
+                tr);
+    }
+
+    public static void wtf(String prefix, String format, Object... args) {
+        android.util.Log.wtf(TAG, buildMessage(prefix, format, args));
+    }
+
+    public static void wtf(Object objectPrefix, String format, Object... args) {
+        android.util.Log.wtf(TAG, buildMessage(getPrefixFromObject(objectPrefix), format, args));
+    }
+
+    private static String getPrefixFromObject(Object obj) {
+        return obj == null ? "<null>" : obj.getClass().getSimpleName();
+    }
+
+    private static String buildMessage(String prefix, String format, Object... args) {
+        String msg;
+        try {
+            msg = (args == null || args.length == 0) ? format
+                    : String.format(Locale.US, format, args);
+        } catch (IllegalFormatException ife) {
+            wtf("Log", ife, "IllegalFormatException: formatString='%s' numArgs=%d", format,
+                    args.length);
+            msg = format + " (An error occurred while formatting the message.)";
+        }
+        return String.format(Locale.US, "%s: %s", prefix, msg);
+    }
+}