From b326756ddd7eee426d7d0e93a485ec30b6fbb5fd Mon Sep 17 00:00:00 2001
From: ?? ? <ulysseskao@ximple.com.tw>
Date: Tue, 20 Apr 2010 19:27:20 +0800
Subject: [PATCH] dgn7 write function for complex chain
---
xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Dgn7fileReader.java | 95 ++++++-----------------------------------------
1 files changed, 13 insertions(+), 82 deletions(-)
diff --git a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Dgn7fileReader.java b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Dgn7fileReader.java
index 298f2ae..4dabae4 100644
--- a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Dgn7fileReader.java
+++ b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Dgn7fileReader.java
@@ -27,7 +27,7 @@
*
* @author Ulysses
* @version 0.1
- * @since 2006/5/17 �U�� 01:24:10
+ * @since 2006/5/17
*/
public class Dgn7fileReader {
private static final Logger logger = LogManager.getLogger(Dgn7fileReader.class);
@@ -37,15 +37,15 @@
ByteBuffer buffer;
private ElementType fileElementType = ElementType.UNDEFINED;
private ByteBuffer headerTransfer;
- private final Record record = new Record();
+ private final Element.FileRecord record = new Element.FileRecord();
private final boolean randomAccessEnabled;
private Lock lock;
private boolean useMemoryMappedBuffer;
private long currentOffset = 0L;
- private StreamLogging streamLogger = new StreamLogging("Shapefile Reader");
+ private StreamLogging streamLogger = new StreamLogging("Dgn7 Reader");
private int maxElementId = 0;
- public Dgn7fileReader(ReadableByteChannel channel, boolean strict, boolean useMemoryMapped, Lock lock)
+ public Dgn7fileReader(FileChannel channel, boolean strict, boolean useMemoryMapped, Lock lock)
throws IOException, Dgn7fileException {
this.channel = channel;
this.useMemoryMappedBuffer = useMemoryMapped;
@@ -56,7 +56,7 @@
init(strict);
}
- public Dgn7fileReader(ReadableByteChannel channel, Lock lock) throws IOException, Dgn7fileException {
+ public Dgn7fileReader(FileChannel channel, Lock lock) throws IOException, Dgn7fileException {
this(channel, true, true, lock);
}
@@ -163,7 +163,7 @@
return randomAccessEnabled;
}
- public Record nextElement() throws IOException, Dgn7fileException {
+ public Element.FileRecord nextElement() throws IOException, Dgn7fileException {
// need to update position
buffer.position(this.toBufferOffset(record.end));
@@ -269,6 +269,7 @@
record.length = elementLength;
record.signature = signature;
record.number = recordNumber;
+ record.buffer = buffer;
// remember, we read one int already...
record.end = this.toFileOffset(buffer.position()) + elementLength - 4;
@@ -322,7 +323,7 @@
}
}
- public Record elementAt(int offset) throws IOException, UnsupportedOperationException, Dgn7fileException {
+ public Element.FileRecord elementAt(int offset) throws IOException, UnsupportedOperationException, Dgn7fileException {
if (randomAccessEnabled) {
this.goTo(offset);
@@ -517,7 +518,7 @@
while (reader.hasNext()) {
size++;
- Dgn7fileReader.Record record = reader.nextElement();
+ Element.FileRecord record = reader.nextElement();
if (record.element() != null) {
Element element = (Element) record.element();
@@ -550,90 +551,20 @@
} catch (IOException e) {
logger.warn("Stop read dgn file", e);
} catch (Dgn7fileException e) {
- e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
+ logger.warn(e.getMessage(), e);
} finally {
reader.close();
}
- System.out.println("count=" + count + " size=" + size);
+ logger.debug("count=" + count + " size=" + size);
// reader.close();
} catch (IOException ioe) {
- System.out.println(ioe);
- ioe.printStackTrace();
+ logger.warn(ioe.getMessage(), ioe);
} catch (Dgn7fileException e) {
- e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
+ logger.warn(e.getMessage(), e);
}
}
System.exit(0);
- }
-
- public final class Record {
- int length;
- int number = 0;
- int offset; // Relative to the whole file
- int start = 0; // Relative to the current loaded buffer
- short signature = 0;
-
- /**
- * The minimum X value.
- */
- public double minX;
-
- /**
- * The minimum Y value.
- */
- public double minY;
-
- /**
- * The minimum Z value.
- */
- public double minZ;
-
- /**
- * The maximum X value.
- */
- public double maxX;
-
- /**
- * The maximum Y value.
- */
- public double maxY;
-
- /**
- * The maximum Z value.
- */
- public double maxZ;
-
- // ElementType type;
- int end = 0; // Relative to the whole file
- Object element = null;
- IElementHandler handler;
-
- public Object element() {
- if (element == null) {
- buffer.position(start);
- buffer.order(ByteOrder.LITTLE_ENDIAN);
-
- if (handler == null) {
- return null;
- }
-
- element = handler.read(buffer, signature, length);
- }
-
- return element;
- }
-
- public int offset() {
- return offset;
- }
-
- /**
- * A summary of the record.
- */
- public String toString() {
- return "Record " + number + " length " + length + " bounds " + minX + "," + minY + " " + maxX + "," + maxY;
- }
}
}
--
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