java: new helper library for the Android port

1 files changed, 75 insertions, 0 deletions

diff --git a/src/java/String.hxx b/src/java/String.hxx
new file mode 100644
index 000000000..a58385f50
--- /dev/null
+++ b/src/java/String.hxx
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010-2011 Max Kellermann <max@duempel.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef JAVA_STRING_HXX
+#define JAVA_STRING_HXX
+
+#include "Ref.hxx"
+
+#include <jni.h>
+
+#include <assert.h>
+#include <stddef.h>
+
+namespace Java {
+	/**
+	 * Wrapper for a local "jstring" reference.
+	 */
+	class String : public LocalRef<jstring> {
+	public:
+		String(JNIEnv *env, jstring value)
+			:LocalRef<jstring>(env, value) {}
+
+		String(JNIEnv *_env, const char *_value)
+			:LocalRef<jstring>(_env, _env->NewStringUTF(_value)) {}
+
+		/**
+		 * Copy the value to the specified buffer.  Truncates
+		 * the value if it does not fit into the buffer.
+		 *
+		 * @return a pointer to the terminating null byte,
+		 * nullptr on error
+		 */
+		static char *CopyTo(JNIEnv *env, jstring value,
+				    char *buffer, size_t max_size);
+
+		/**
+		 * Copy the value to the specified buffer.  Truncates
+		 * the value if it does not fit into the buffer.
+		 *
+		 * @return a pointer to the terminating null byte,
+		 * nullptr on error
+		 */
+		char *CopyTo(JNIEnv *env, char *buffer, size_t max_size) {
+			return CopyTo(env, Get(), buffer, max_size);
+		}
+	};
+}
+
+#endif