add to repo

java/org/jlab/coda/jevio/test/HipoTest.java

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+//
+// Copyright 2024, Jefferson Science Associates, LLC.
+// Subject to the terms in the LICENSE file found in the top-level directory.
+//
+// EPSCI Group
+// Thomas Jefferson National Accelerator Facility
+// 12000, Jefferson Ave, Newport News, VA 23606
+// (757)-269-7100
+
+
+package org.jlab.coda.jevio.test;
+
+import org.jlab.coda.hipo.*;
+import org.jlab.coda.jevio.*;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+public class HipoTest extends TestBase {
+
+
+    /** Writing to a buffer using CompactEventBuilder interface. */
+    void testCompactEventCreation(int tag, int num) throws EvioException, IOException, HipoException {
+
+        try {
+            // Create ByteBuffer with EvioEvent in it
+            buffer = createCompactEventBuffer(tag, num, ByteOrder.nativeOrder(), 200000, null);
+
+            Utilities.printBytes(buffer, 0, 100, "BUFFER BYTES");
+
+            System.out.println("\nBuffer -> \n" + buffer.toString());
+
+
+            //
+            // Write file
+            //
+            Writer writer = new Writer(HeaderType.EVIO_FILE, ByteOrder.nativeOrder(),
+                    0, 0, null, null,
+                    CompressionType.RECORD_UNCOMPRESSED, false);
+
+            writer.open(writeFileName1);
+            writer.addEvent(buffer);
+            writer.close();
+
+
+            Utilities.printBytes(writeFileName1, 0, 100, "WRITTEN FILE BYTES");
+
+            System.out.println("\n\nAfter writer closed ... ");
+
+            // Read event back out of file
+            Reader reader = new Reader(writeFileName1);
+
+            System.out.println("createCompactEvents: have dictionary? " + reader.hasDictionary());
+            String xmlDict = reader.getDictionary();
+            System.out.println("createCompactEvents: read dictionary ->\n\n" + xmlDict);
+            System.out.println("\ncreateCompactEvents: try getting getNextEvent");
+
+            if (reader.getEventCount() < 1) {
+                System.out.println("createCompactEvents: no data events in file");
+                return;
+            }
+
+            int len;
+            byte[] bytes = reader.getNextEvent();
+            EvioEvent ev = EvioReader.getEvent(bytes, 0, reader.getByteOrder());
+            System.out.println("createCompactEvents: next evio event ->\n" + ev.treeToString(""));
+
+            byte[] bytes2 = reader.getEvent(0);
+            System.out.println("createCompactEvents: get event(0), size = " + bytes2.length);
+
+            ByteBuffer bb1 = ByteBuffer.allocate(20000);
+            reader.getEvent(bb1, 0);
+            System.out.println("createCompactEvents: event 1,  bb1 limit ->\n" + bb1.limit());
+
+
+            ByteBuffer bb2 = ByteBuffer.allocate(20000);
+            reader.getEvent(bb2, 0);
+            System.out.println("createCompactEvents: event 1,  bb2 limit ->\n" + bb2.limit());
+        }
+        catch (EvioException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    /** Writing to a buffer using original evio tree interface. */
+    void testTreeEventCreation(int tag, int num) throws IOException {
+
+        try {
+            // Build event (bank of banks) with EventBuilder object
+            EvioEvent event = createTreeEvent(tag, num);
+
+            System.out.println("Event:\n" + event.treeToString(""));
+            System.out.println("Event Header:\n" + event.getHeader().toString());
+
+            // Take event & write it into buffer
+            System.out.println("Write event to " + writeFileName1 + " as compressed LZ4");
+            EventWriter writer = new EventWriter(writeFileName1, null, "runType", 1, 0L, 0, 0,
+                    ByteOrder.nativeOrder(), dictionary, true, false, null, 1, 1, 1, 1,
+                    CompressionType.RECORD_COMPRESSION_LZ4, 2, 16, 0);
+
+            writer.setFirstEvent(event);
+            writer.writeEvent(event);
+            writer.close();
+
+            // Read event back out of file
+            EvioReader reader = new EvioReader(writeFileName1);
+
+            System.out.println("    createObjectEvents: have dictionary? " + reader.hasDictionaryXML());
+            String xmlDict = reader.getDictionaryXML();
+            System.out.println("    createObjectEvents: read dictionary ->\n\n" + xmlDict);
+
+            System.out.println("\n    createObjectEvents: have first event? " + reader.hasFirstEvent());
+            EvioEvent fe = reader.getFirstEvent();
+            System.out.println("    createObjectEvents: read first event ->\n\n" + fe.treeToString(""));
+
+            System.out.println("\n    createObjectEvents: try getting ev #1");
+            EvioEvent ev = reader.parseEvent(1);
+            System.out.println("    createObjectEvents: event ->\n" + ev.treeToString(""));
+        }
+        catch (EvioException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+
+    public static void main(String args[]) {
+        try {
+            HipoTest tester = new HipoTest();
+            //tester.testCompactEventCreation(1,1);
+            tester.testTreeEventCreation(1,1);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+
+
+}