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Posted to commits@camel.apache.org by da...@apache.org on 2020/02/10 15:51:46 UTC

[camel] branch master updated: CAMEL-14506 came-ftp - streamDownload and stepwise could cause deadlock (#3560)

This is an automated email from the ASF dual-hosted git repository.

davsclaus pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/camel.git


The following commit(s) were added to refs/heads/master by this push:
     new e7170d3  CAMEL-14506 came-ftp - streamDownload and stepwise could cause deadlock (#3560)
e7170d3 is described below

commit e7170d3449cf5ac86ad0c70172704dc59b29a39a
Author: JiriOndrusek <jo...@redhat.com>
AuthorDate: Mon Feb 10 16:51:29 2020 +0100

    CAMEL-14506 came-ftp - streamDownload and stepwise could cause deadlock (#3560)
---
 .../camel/component/file/remote/FtpOperations.java |  4 +++
 .../FtpSimpleConsumeStreamingPartialReadTest.java  |  2 +-
 ...tpSimpleConsumeStreamingStepwiseFalseTest.java} | 25 ++++++++++----
 .../FtpSimpleConsumeStreamingStepwiseTrueTest.java | 38 ++++++++++++++++++++++
 ...impleConsumeStreamingWithMultipleFilesTest.java |  2 +-
 .../file/remote/FtpStreamingMoveTest.java          |  2 +-
 .../modules/ROOT/pages/ftp-component.adoc          |  2 ++
 .../modules/ROOT/pages/camel-3x-upgrade-guide.adoc |  6 +++-
 8 files changed, 71 insertions(+), 10 deletions(-)

diff --git a/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/FtpOperations.java b/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/FtpOperations.java
index f9bc12e..046feb1 100644
--- a/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/FtpOperations.java
+++ b/components/camel-ftp/src/main/java/org/apache/camel/component/file/remote/FtpOperations.java
@@ -425,6 +425,10 @@ public class FtpOperations implements RemoteFileOperations<FTPFile> {
 
     @SuppressWarnings("unchecked")
     private boolean retrieveFileToStreamInBody(String name, Exchange exchange) throws GenericFileOperationFailedException {
+        if (endpoint.getConfiguration().isStepwise() && endpoint.getConfiguration().isStreamDownload()) {
+            //stepwise and streamDownload are not supported together
+            throw new IllegalArgumentException("The option stepwise is not supported for stream downloading");
+        }
         boolean result;
         try {
             GenericFile<FTPFile> target = (GenericFile<FTPFile>)exchange.getProperty(FileComponent.FILE_EXCHANGE_FILE);
diff --git a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingPartialReadTest.java b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingPartialReadTest.java
index 9a1805f..25277d1 100644
--- a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingPartialReadTest.java
+++ b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingPartialReadTest.java
@@ -68,7 +68,7 @@ public class FtpSimpleConsumeStreamingPartialReadTest extends FtpServerTestSuppo
         return new RouteBuilder() {
             @Override
             public void configure() throws Exception {
-                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true" + "&move=done&moveFailed=failed")
+                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true" + "&move=done&moveFailed=failed&stepwise=false")
                     .routeId("foo").noAutoStartup().process(new Processor() {
 
                         @Override
diff --git a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingTest.java b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseFalseTest.java
similarity index 81%
rename from components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingTest.java
rename to components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseFalseTest.java
index cbafb98..e4d1020 100644
--- a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingTest.java
+++ b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseFalseTest.java
@@ -26,7 +26,11 @@ import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-public class FtpSimpleConsumeStreamingTest extends FtpServerTestSupport {
+public class FtpSimpleConsumeStreamingStepwiseFalseTest extends FtpServerTestSupport {
+
+    boolean isStepwise() {
+        return false;
+    }
 
     @Test
     public void testFtpSimpleConsumeAbsolute() throws Exception {
@@ -42,23 +46,32 @@ public class FtpSimpleConsumeStreamingTest extends FtpServerTestSupport {
         String path = FTP_ROOT_DIR + "/tmp/mytemp";
         template.sendBodyAndHeader("file:" + path, expected, Exchange.FILE_NAME, "hello.txt");
 
-        MockEndpoint mock = getMockEndpoint("mock:result");
-        mock.expectedMessageCount(1);
-        mock.expectedHeaderReceived(Exchange.FILE_NAME, "hello.txt");
+        MockEndpoint mock = getMockEndpoint();
 
         context.getRouteController().startRoute("foo");
 
         assertMockEndpointsSatisfied();
-        GenericFile<?> remoteFile = (GenericFile<?>)mock.getExchanges().get(0).getIn().getBody();
+        assertMore(mock);
+    }
+
+    void assertMore(MockEndpoint mock) {
+        GenericFile<?> remoteFile = (GenericFile<?>) mock.getExchanges().get(0).getIn().getBody();
         assertTrue(remoteFile.getBody() instanceof InputStream);
     }
 
+    MockEndpoint getMockEndpoint() {
+        MockEndpoint mock = getMockEndpoint("mock:result");
+        mock.expectedMessageCount(1);
+        mock.expectedHeaderReceived(Exchange.FILE_NAME, "hello.txt");
+        return mock;
+    }
+
     @Override
     protected RouteBuilder createRouteBuilder() throws Exception {
         return new RouteBuilder() {
             @Override
             public void configure() throws Exception {
-                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true").routeId("foo").noAutoStartup()
+                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true&stepwise=" + String.valueOf(isStepwise())).routeId("foo").noAutoStartup()
                     .to("mock:result");
             }
         };
diff --git a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseTrueTest.java b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseTrueTest.java
new file mode 100644
index 0000000..e129446
--- /dev/null
+++ b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingStepwiseTrueTest.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.camel.component.file.remote;
+
+import org.apache.camel.component.mock.MockEndpoint;
+
+public class FtpSimpleConsumeStreamingStepwiseTrueTest extends FtpSimpleConsumeStreamingStepwiseFalseTest {
+
+    @Override
+    boolean isStepwise() {
+        return true;
+    }
+
+    @Override
+    MockEndpoint getMockEndpoint() {
+        MockEndpoint mock = getMockEndpoint("mock:result");
+        mock.expectedMessageCount(0);
+        return mock;
+    }
+
+    @Override
+    void assertMore(MockEndpoint mock) {
+    }
+}
diff --git a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingWithMultipleFilesTest.java b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingWithMultipleFilesTest.java
index 0e8b3cf..fd2cfa5 100644
--- a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingWithMultipleFilesTest.java
+++ b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpSimpleConsumeStreamingWithMultipleFilesTest.java
@@ -63,7 +63,7 @@ public class FtpSimpleConsumeStreamingWithMultipleFilesTest extends FtpServerTes
         return new RouteBuilder() {
             @Override
             public void configure() throws Exception {
-                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true").routeId("foo").noAutoStartup()
+                from("ftp://localhost:" + getPort() + "/tmp/mytemp?username=admin&password=admin&delay=10s&disconnect=true&streamDownload=true&stepwise=false").routeId("foo").noAutoStartup()
                     .to("mock:result");
             }
         };
diff --git a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpStreamingMoveTest.java b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpStreamingMoveTest.java
index 6658be0..2ab483d 100644
--- a/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpStreamingMoveTest.java
+++ b/components/camel-ftp/src/test/java/org/apache/camel/component/file/remote/FtpStreamingMoveTest.java
@@ -31,7 +31,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 public class FtpStreamingMoveTest extends FtpServerTestSupport {
 
     private String getFtpUrl() {
-        return "ftp://admin@localhost:" + getPort() + "/mymove?password=admin&delay=1000&streamDownload=true&move=done";
+        return "ftp://admin@localhost:" + getPort() + "/mymove?password=admin&delay=1000&streamDownload=true&move=done&stepwise=false";
     }
 
     @Override
diff --git a/docs/components/modules/ROOT/pages/ftp-component.adoc b/docs/components/modules/ROOT/pages/ftp-component.adoc
index 925c389..92f1d37 100644
--- a/docs/components/modules/ROOT/pages/ftp-component.adoc
+++ b/docs/components/modules/ROOT/pages/ftp-component.adoc
@@ -443,6 +443,8 @@ stepwise, while others can only download if they do not.
 
 You can use the `stepwise` option to control the behavior.
 
+*Important*: Stepwise=true is not supported for stream download.
+
 Note that stepwise changing of directory will in most cases only work
 when the user is confined to it's home directory and when the home
 directory is reported as `"/"`.
diff --git a/docs/user-manual/modules/ROOT/pages/camel-3x-upgrade-guide.adoc b/docs/user-manual/modules/ROOT/pages/camel-3x-upgrade-guide.adoc
index 6b63560..af85a85 100644
--- a/docs/user-manual/modules/ROOT/pages/camel-3x-upgrade-guide.adoc
+++ b/docs/user-manual/modules/ROOT/pages/camel-3x-upgrade-guide.adoc
@@ -32,6 +32,10 @@ The option `cache` has been deprecated in favour of the new `scope` option that
 Setting this to Prototype will let Camel create/lookup a new bean instance, per use; which acts as prototype scoped. However beware that if you lookup the bean, then the registry that holds the bean, would return a bean accordingly to its configuration, which can be singleton or prototype scoped. For example if you use Spring, or CDI, which has their own settings for setting bean scopes.
 ====
 
+=== camel-ftp
+
+ The stepwise functionality (stepwise=true) is not supported for stream download (treamDownload=true).
+
 === camel-irc
 
 The `camel-irc` component has changed its endpoint syntax and removed option #room as a part of the url path. Allowed syntax is:
@@ -337,4 +341,4 @@ Remove the method `getProcessors` from `Pipeline` as you should use the `next` m
 
 The `@Experimental` annotation is moved from `meta-annotations` JAR to `camel-api`
 and moved from package `org.apache.camel.meta` to `org.apache.camel`.
-And the meta-annotations has been removed.
\ No newline at end of file
+And the meta-annotations has been removed.