JAL-1807 Bob's first commit -- Applet loaded; needs image

[jalview.git] / src / javajs / util / ArrayDataReader.java

diff --git a/src/javajs/util/ArrayDataReader.java b/src/javajs/util/ArrayDataReader.java
new file mode 100644 (file)
index 0000000..737a6ab
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+++ b/src/javajs/util/ArrayDataReader.java
@@ -0,0 +1,57 @@
+package javajs.util;
+
+import java.io.IOException;
+
+
+
+
+
+
+/**
+ * 
+ * ArrayDataReader subclasses BufferedReader and overrides its
+ * read, readLine, mark, and reset methods so that JmolAdapter 
+ * works with String[] arrays without any further adaptation. 
+ * 
+ */
+
+public class ArrayDataReader extends DataReader {
+  private String[] data;
+  private int pt;
+  private int len;
+
+  public ArrayDataReader() {
+    super();
+  }
+  
+  @Override
+  public DataReader setData(Object data) {
+    this.data = (String[]) data;
+    len = this.data.length;
+    return this;
+  }
+
+  @Override
+  public int read(char[] buf, int off, int len) throws IOException {
+    return readBuf(buf, off, len);
+  }
+
+  @Override
+  public String readLine() {
+    return (pt < len ? data[pt++] : null);
+  }
+
+  /**
+   * 
+   * @param ptr
+   */
+  public void mark(long ptr) {
+    //ignore ptr.
+    ptMark = pt;
+  }
+
+  @Override
+  public void reset() {
+    pt = ptMark;
+  }
+}
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