1 files changed, 55 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/util/DataInputFullStream.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/util/DataInputFullStream.java
new file mode 100644
index 000000000000..011eddea5c92
--- /dev/null
+++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/util/DataInputFullStream.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * 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 org.jetbrains.java.decompiler.util;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.IOException;
+
+public class DataInputFullStream extends DataInputStream {
+
+  public DataInputFullStream(byte[] bytes) {
+    super(new ByteArrayInputStream(bytes));
+  }
+
+  public int readFull(byte[] b) throws IOException {
+    int length = b.length;
+    byte[] temp = new byte[length];
+    int pos = 0;
+
+    int bytes_read;
+    while (true) {
+      bytes_read = read(temp, 0, length - pos);
+      if (bytes_read == -1) {
+        return -1;
+      }
+
+      System.arraycopy(temp, 0, b, pos, bytes_read);
+      pos += bytes_read;
+      if (pos == length) {
+        break;
+      }
+    }
+
+    return length;
+  }
+
+  public void discard(int n) throws IOException {
+    if (super.skip(n) != n) {
+      throw new IOException("Skip failed");
+    }
+  }
+}