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Added configurable buffer size and synchronization on the underlying stream.

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This commit is contained in:
Mark Fisher
2008-01-11 23:42:52 +00:00
parent 27b4912415
commit 133390ba07
1 changed files with 20 additions and 4 deletions
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24
spring-integration-core/src/main/java/org/springframework/integration/adapter/stream/ByteStreamSource.java
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@@ -35,15 +35,25 @@ public class ByteStreamSource implements PollableSource<byte[]> {
private BufferedInputStream stream;
private Object streamMonitor;
private int bytesPerMessage = 1024;
private boolean shouldTruncate = true;
public ByteStreamSource(InputStream stream) {
this(stream, -1);
}
public ByteStreamSource(InputStream stream, int bufferSize) {
this.streamMonitor = stream;
if (stream instanceof BufferedInputStream) {
this.stream = (BufferedInputStream) stream;
}
else if (bufferSize > 0) {
this.stream = new BufferedInputStream(stream, bufferSize);
}
else {
this.stream = new BufferedInputStream(stream);
}
@@ -62,12 +72,18 @@ public class ByteStreamSource implements PollableSource<byte[]> {
List<byte[]> results = new ArrayList<byte[]>();
while (results.size() < limit) {
try {
int bytesAvailable = stream.available();
if (bytesAvailable == 0) {
byte[] bytes;
int bytesRead = 0;
synchronized (this.streamMonitor) {
if (stream.available() == 0) {
return results;
}
bytes = new byte[bytesPerMessage];
bytesRead = stream.read(bytes, 0, bytes.length);
}
if (bytesRead <= 0) {
return results;
}
byte[] bytes = new byte[bytesPerMessage];
int bytesRead = stream.read(bytes, 0, bytes.length);
if (!this.shouldTruncate) {
results.add(bytes);
}