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Code Issues Releases Wiki Activity

Use try-with-resources where possible

Browse source 
and make StanzaCollector implement AutoCloseable.
This commit is contained in:
Florian Schmaus 2019-02-04 09:36:37 +01:00
parent e98d42790a
commit 658fd08d20
10 changed files with 30 additions and 69 deletions
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11
smack-core/src/main/java/org/jivesoftware/smack/StanzaCollector.java
View file

@ -41,7 +41,7 @@ import org.jivesoftware.smack.packet.Stanza;
* @see XMPPConnection#createStanzaCollector(StanzaFilter)
* @author Matt Tucker
*/
public class StanzaCollector {
public class StanzaCollector implements AutoCloseable {
private final StanzaFilter packetFilter;
@ -92,6 +92,10 @@ public class StanzaCollector {
cancelled = true;
connection.removeStanzaCollector(this);
notifyAll();
if (collectorToReset != null) {
collectorToReset.cancel();
}
}
/**
@ -431,4 +435,9 @@ public class StanzaCollector {
}
}
@Override
public void close() {
cancel();
}
}

8
smack-core/src/main/java/org/jivesoftware/smack/provider/ProviderFileLoader.java
View file

@ -26,7 +26,6 @@ import java.util.logging.Logger;
import org.jivesoftware.smack.packet.ExtensionElement;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.util.CloseableUtil;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
@ -54,10 +53,10 @@ public class ProviderFileLoader implements ProviderLoader {
@SuppressWarnings("unchecked")
public ProviderFileLoader(InputStream providerStream, ClassLoader classLoader) {
// Load processing providers.
try {
try (InputStream is = providerStream) {
XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
parser.setInput(providerStream, "UTF-8");
parser.setInput(is, "UTF-8");
int eventType = parser.getEventType();
do {
if (eventType == XmlPullParser.START_TAG) {
@ -141,9 +140,6 @@ public class ProviderFileLoader implements ProviderLoader {
LOGGER.log(Level.SEVERE, "Unknown error occurred while parsing provider file", e);
exceptions.add(e);
}
finally {
CloseableUtil.maybeClose(providerStream, LOGGER);
}
}
@Override

9
smack-core/src/main/java/org/jivesoftware/smack/util/FileUtils.java
View file

@ -113,9 +113,7 @@ public final class FileUtils {
*/
@SuppressWarnings("DefaultCharset")
public static String readFileOrThrow(File file) throws IOException {
Reader reader = null;
try {
reader = new FileReader(file);
try (Reader reader = new FileReader(file)) {
char[] buf = new char[8192];
int len;
StringBuilder s = new StringBuilder();
@ -124,11 +122,6 @@ public final class FileUtils {
}
return s.toString();
}
finally {
if (reader != null) {
reader.close();
}
}
}
public static String readFile(File file) {

4
smack-experimental/src/main/java/org/jivesoftware/smackx/iot/data/IoTDataManager.java
View file

@ -192,9 +192,9 @@ public final class IoTDataManager extends IoTManager {
doneCollector.nextResult();
}
finally {
// Ensure that the two collectors are canceled in any case.
// Canceling dataCollector will also cancel the doneCollector since it is configured as dataCollector's
// collector to reset.
dataCollector.cancel();
doneCollector.cancel();
}
int collectedCount = dataCollector.getCollectedCount();

10
smack-experimental/src/main/java/org/jivesoftware/smackx/mam/MamManager.java
View file

@ -546,17 +546,15 @@ public final class MamManager extends Manager {
StanzaCollector.Configuration resultCollectorConfiguration = StanzaCollector.newConfiguration()
.setStanzaFilter(new MamResultFilter(mamQueryIq)).setCollectorToReset(mamFinIQCollector);
StanzaCollector resultCollector = connection.createStanzaCollector(resultCollectorConfiguration);
try {
StanzaCollector cancelledResultCollector;
try (StanzaCollector resultCollector = connection.createStanzaCollector(resultCollectorConfiguration)) {
connection.sendStanza(mamQueryIq);
mamFinIQ = mamFinIQCollector.nextResultOrThrow();
} finally {
mamFinIQCollector.cancel();
resultCollector.cancel();
cancelledResultCollector = resultCollector;
}
return new MamQueryPage(resultCollector, mamFinIQ);
return new MamQueryPage(cancelledResultCollector, mamFinIQ);
}
/**

12
smack-extensions/src/main/java/org/jivesoftware/smackx/caps/cache/SimpleDirectoryPersistentCache.java vendored
View file

@ -1,6 +1,6 @@
/**
*
* Copyright © 2011-2018 Florian Schmaus
* Copyright © 2011-2019 Florian Schmaus
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -130,11 +130,8 @@ public class SimpleDirectoryPersistentCache implements EntityCapsPersistentCache
* @throws IOException
*/
private static void writeInfoToFile(File file, DiscoverInfo info) throws IOException {
DataOutputStream dos = new DataOutputStream(new FileOutputStream(file));
try {
try (DataOutputStream dos = new DataOutputStream(new FileOutputStream(file))) {
dos.writeUTF(info.toXML(null).toString());
} finally {
dos.close();
}
}
@ -146,12 +143,9 @@ public class SimpleDirectoryPersistentCache implements EntityCapsPersistentCache
* @throws Exception
*/
private static DiscoverInfo restoreInfoFromFile(File file) throws Exception {
DataInputStream dis = new DataInputStream(new FileInputStream(file));
String fileContent;
try {
try (DataInputStream dis = new DataInputStream(new FileInputStream(file))) {
fileContent = dis.readUTF();
} finally {
dis.close();
}
if (fileContent == null) {
return null;

14
smack-extensions/src/main/java/org/jivesoftware/smackx/jiveproperties/packet/JivePropertiesExtension.java
View file

@ -29,7 +29,6 @@ import java.util.logging.Logger;
import org.jivesoftware.smack.packet.ExtensionElement;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.util.CloseableUtil;
import org.jivesoftware.smack.util.XmlStringBuilder;
import org.jivesoftware.smack.util.stringencoder.Base64;
@ -177,11 +176,10 @@ public class JivePropertiesExtension implements ExtensionElement {
// a binary format, which won't work well inside of XML. Therefore, we base-64
// encode the binary data before adding it.
else {
ByteArrayOutputStream byteStream = null;
ObjectOutputStream out = null;
try {
byteStream = new ByteArrayOutputStream();
out = new ObjectOutputStream(byteStream);
try (
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(byteStream);
) {
out.writeObject(value);
type = "java-object";
valueStr = Base64.encodeToString(byteStream.toByteArray());
@ -191,10 +189,6 @@ public class JivePropertiesExtension implements ExtensionElement {
type = "java-object";
valueStr = "Serializing error: " + e.getMessage();
}
finally {
CloseableUtil.maybeClose(out, LOGGER);
CloseableUtil.maybeClose(byteStream, LOGGER);
}
}
xml.attribute("type", type);
xml.rightAngleBracket();

15
smack-extensions/src/main/java/org/jivesoftware/smackx/offline/OfflineMessageManager.java
View file

@ -165,8 +165,7 @@ public class OfflineMessageManager {
}
});
int pendingNodes = nodes.size();
StanzaCollector messageCollector = connection.createStanzaCollector(messageFilter);
try {
try (StanzaCollector messageCollector = connection.createStanzaCollector(messageFilter)) {
connection.createStanzaCollectorAndSend(request).nextResultOrThrow();
// Collect the received offline messages
Message message;
@ -181,10 +180,6 @@ public class OfflineMessageManager {
}
} while (message != null && pendingNodes > 0);
}
finally {
// Stop queuing offline messages
messageCollector.cancel();
}
return messages;
}
@ -206,10 +201,9 @@ public class OfflineMessageManager {
StanzaCollector resultCollector = connection.createStanzaCollectorAndSend(request);
StanzaCollector.Configuration messageCollectorConfiguration = StanzaCollector.newConfiguration().setStanzaFilter(PACKET_FILTER).setCollectorToReset(resultCollector);
StanzaCollector messageCollector = connection.createStanzaCollector(messageCollectorConfiguration);
List<Message> messages;
try {
try (StanzaCollector messageCollector = connection.createStanzaCollector(messageCollectorConfiguration)) {
resultCollector.nextResultOrThrow();
// Be extra safe, cancel the message collector right here so that it does not collector
// other messages that eventually match (although I've no idea how this could happen in
@ -221,11 +215,6 @@ public class OfflineMessageManager {
messages.add(message);
}
}
finally {
// Ensure that the message collector is canceled even if nextResultOrThrow threw. It
// doesn't matter if we cancel the message collector twice
messageCollector.cancel();
}
return messages;
}

9
smack-extensions/src/main/java/org/jivesoftware/smackx/vcardtemp/packet/VCard.java
View file

@ -491,9 +491,7 @@ public final class VCard extends IQ {
}
private static byte[] getFileBytes(File file) throws IOException {
BufferedInputStream bis = null;
try {
bis = new BufferedInputStream(new FileInputStream(file));
try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file))) {
int bytes = (int) file.length();
byte[] buffer = new byte[bytes];
int readBytes = bis.read(buffer);
@ -502,11 +500,6 @@ public final class VCard extends IQ {
}
return buffer;
}
finally {
if (bis != null) {
bis.close();
}
}
}
/**

7
smack-integration-test/src/main/java/org/igniterealtime/smack/inttest/AbstractSmackIntTest.java
View file

@ -55,15 +55,10 @@ public abstract class AbstractSmackIntTest {
throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
StanzaCollector.Configuration configuration = StanzaCollector.newConfiguration().setStanzaFilter(
filter).setSize(1);
StanzaCollector collector = connection.createStanzaCollector(configuration);
try {
try (StanzaCollector collector = connection.createStanzaCollector(configuration)) {
action.run();
collector.nextResultOrThrow(timeout);
}
finally {
collector.cancel();
}
}
@SuppressWarnings("ThreadPriorityCheck")