Based on below example , how to make my Add bean as Stateful:
from("direct:firstRoute")
.bean(Add.class)
.bean(Add.class,"setIntA(1)")
.bean(Add.class,"setIntB(1)")
.log("${body}")
.setHeader(SpringWebserviceConstants.SPRING_WS_SOAP_ACTION,simple("http://tempuri.org/Add"))
.to("spring-ws:http://www.dneonline.com/calculator.asmx")
.convertBodyTo(AddResponse.class)
.log("${body}");
That mean first i need to create the bean then Calling the setIntA method then setIntB without loosing the value in each step .
Related
I have a use case where I want to write in memory Java blocking queue contents using apache camel route to S3. Is this even possible??
The workaround I can think of is to pull records from blocking queue and flush to local file and then to S3 via file-s3 route.
Update:
Route :
fromF("seda:awsquue?concurrentConsumers=3&queue=#NonLimitQueue%s", getSourceId())
.convertBodyTo(byte[].class)
.setHeader(S3Constants.CONTENT_LENGTH, simple("${in.header.CamelFileLength}"))
.setHeader(S3Constants.KEY,simple("${in.header.CamelFileNameOnly}"))
.log(LoggingLevel.INFO, "route started")
.to("aws-s3://" +"bucket"
+ "?amazonS3Client=#s3ClientProfiler&serverSideEncryption=AES256&multiPartUpload=true");
Queue creation in different workflow :
context.registerBean("NonLimitQueue"+sourceId,ArrayBlockingQueue.class, () -> queue);
camelContext.addRoutes(new S3RouteBuilder(sourceId));
queue.add("qqqq");
When route starts it fails with exception :
java.lang.ClassCastException: class java.lang.String cannot be cast to class org.apache.camel.Exchange (java.lang.String is in module java.base of loader 'bootstrap'; org.apache.camel.Exchange is in unnamed module of loader 'app')
at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:171)
at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:125)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
which I believe is failing at queue.add("qqqq"). How to write to queue explicitly is not clear to me.
camel seda is a blocking queue for apache camel. default queue size is 1000 .you can increase or decrease this size.
from("aws-s3://helloBucket?accessKey=yourAccessKey&secretKey=yourSecretKey")
.to("seda:awsquue");
from("seda:awsquue?concurrentConsumers=3&queue=#NonLimitQueue").
// do something
// for quarkus it is
#ApplicationScoped
public class ConnectionConf {
#Named("NonLimitQueue")
#Produces
public BlockingQueue arrayDeque(){
return new ArrayBlockingQueue(30000);
}
}
What seems to be happening is Camel trying to read "qqqq" as an Exchange... Camel routes can only handle Exchange-objects and not arbitrary data-structures. What you should do is place the stream you wish to use in the body of an Exchange and send that exchange to the queue.
Something to the effect of this:
camelContext.addRoutes(new S3RouteBuilder(sourceId));
Exchange exchange = new DefaultExchange(camelContext);
exchange.getIn().setBody("qqqq");
queue.add(exchange);
I have multiple Camel applications (written in Spring DSL) and they all share the same onException and a number of interceptors defined globally in the camel context. I'm wondering if it's possible to have onException and interceptors defined in a separate XML file somewhere in the class path and include or inject it into camel context when the app starts. Java DSL has adviceWith, but is there such thin in Spring DSL as well?
This is not possible currently. However in Camel 3.12 onwards we are adding such feature which is called route configuration
You can read about it here: https://camel.apache.org/manual/latest/route-configuration.html
My temporary "solution" was to store the route configuration XML files in some pre-defined location, e.g. "/routeConfigurations" and I added the following code to my SpringBoot application class:
#Bean
public void initRouteConfigurations() throws Exception {
SpringCamelContext springCamelContext = (SpringCamelContext) camelContext;
PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
Resource[] routeConfigurations = resolver.getResources("/routeConfigurations/*");
for (Resource r : routeConfigurations) {
InputStream is = r.getURL().openStream();
ModelParser parser = new ModelParser(is, "http://camel.apache.org/schema/spring");
Optional<RouteConfigurationsDefinition> definitionsOptional = parser.parseRouteConfigurationsDefinition();
RouteConfigurationsDefinition routeConfigurationsDefinition = definitionsOptional.get();
springCamelContext.addRouteConfigurations(routeConfigurationsDefinition.getRouteConfigurations());
}
}
Read documentation https://camel.apache.org/components/latest/quartz-component.html
propertiesFile (consumer) File name of the properties to load from the classpath
My route
from("quartz://test/receive?cron=0+0+*+*+*+?&propertiesFile=quartz.properties")
.to("mock:done");
Return error:
Check the uri if the parameters are spelt correctly and that they are properties of the endpoint. Unknown parameters=[{propertiesFile=quartz.properties}]}]
Repeats at Apache Camel 3.0, 3.1.0
You are configuring quartz endpoint. "propertiesFile" is field of quartz component.
Make something like that:
QuartzComponent component = new QuartzComponent(getContext());
component.setPropertiesFile("quartz.properties");
getContext().getRegistry().bind("quartz", component);
ThingsService is a webservice interface generated by jax-ws (stripped of annotations for the sake of brevity). There is one parameter-less method:
public interface ThingsService {
AvailableThingsResponse getAvailableThings();
}
Trying to call the no-parameters operation from a Camel route using CXF like this:
from("timer:start?fixedRate=true")
.setHeader(CxfConstants.OPERATION_NAME, constant("getAvailableThings")
.to("cxf:http://localhost:8080/services/things"
+ "?serviceClass=" + ThingsService.class.getName());
causes Camel to barf when calling the endpoint:
java.lang.IllegalArgumentException: Get the wrong
parameter size to invoke the out service, Expect size 0, Parameter
size 1. Please check if the message body matches the CXFEndpoint POJO
Dataformat request.
at org.apache.camel.component.cxf.CxfProducer.checkParameterSize(CxfProducer.java:283)
at org.apache.camel.component.cxf.CxfProducer.getParams(CxfProducer.java:321)
at org.apache.camel.component.cxf.CxfProducer.process(CxfProducer.java:131)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:542)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:120)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:197)
at org.apache.camel.component.timer.TimerConsumer.sendTimerExchange(TimerConsumer.java:192)
at org.apache.camel.component.timer.TimerConsumer$1.run(TimerConsumer.java:76)
at java.util.TimerThread.mainLoop(Timer.java:555)
at util.TimerThread.run(Timer.java:505)
The CXF endpoint is in POJO mode, exchange body being sent to the endpoint is null.
What's the proper way of calling a no-params WS operation from Camel route using CXF component?
Turns out that no-params is represented using an empty array:
from("timer:start?fixedRate=true")
.setHeader(CxfConstants.OPERATION_NAME, constant("getAvailableThings")
.transform().body(o -> new Object[0])
.to("cxf:http://localhost:8080/services/things"
+ "?serviceClass=" + ThingsService.class.getName());
In my Blueprint application deployed in JBoss Fuse 6.1.0-379, I want to secure the password I use for creating a database connection. I read this article and added <enc:property-placeholder> to the blueprint configuration. However my blueprint configuration has many property placeholders, and it seems that the Jasypt Placeholder Resolver is trying to decrypt all the placeholders I define in my Camel Context. When the Blueprint Context starts up, I get the following exception:
11:59:51,233 | ERROR | t-379-dmz/deploy | BlueprintCamelContext | 151 - org.apache.camel.camel-blueprint - 2.12.0.redhat-610379 | Error occurred during starting Camel: CamelContext(camel-5) due Failed to create route route7: Route(route7)[[From[{{uri}}]] -> [Log[logging]]] because of Failed to resolve endpoint: {{uri}} due to: org.jasypt.exceptions.EncryptionOperationNotPossibleException
org.apache.camel.FailedToCreateRouteException: Failed to create route route7: Route(route7)[[From[{{uri}}]] -> [Log[logging]]] because of Failed to resolve endpoint: {{uri}} due to: org.jasypt.exceptions.EncryptionOperationNotPossibleException
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:182)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:778)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:1955)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1705)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1579)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1547)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.blueprint.BlueprintCamelContext.start(BlueprintCamelContext.java:177)[151:org.apache.camel.camel-blueprint:2.12.0.redhat-610379]
at org.apache.camel.blueprint.BlueprintCamelContext.maybeStart(BlueprintCamelContext.java:209)[151:org.apache.camel.camel-blueprint:2.12.0.redhat-610379]
at org.apache.camel.blueprint.BlueprintCamelContext.serviceChanged(BlueprintCamelContext.java:147)[151:org.apache.camel.camel-blueprint:2.12.0.redhat-610379]
at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:934)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:795)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4666)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix.registerService(Felix.java:3674)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:347)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:448)[9:org.apache.aries.blueprint.core:1.0.1.redhat-610379]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:383)[9:org.apache.aries.blueprint.core:1.0.1.redhat-610379]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:261)[9:org.apache.aries.blueprint.core:1.0.1.redhat-610379]
at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:270)[9:org.apache.aries.blueprint.core:1.0.1.redhat-610379]
at org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:233)[9:org.apache.aries.blueprint.core:1.0.1.redhat-610379]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)[11:org.apache.aries.util:1.0.1.redhat-610379]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)[11:org.apache.aries.util:1.0.1.redhat-610379]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)[11:org.apache.aries.util:1.0.1.redhat-610379]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)[11:org.apache.aries.util:1.0.1.redhat-610379]
at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)[11:org.apache.aries.util:1.0.1.redhat-610379]
at org.apache.felix.framework.util.SecureAction.invokeBundleEventHook(SecureAction.java:1103)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.util.EventDispatcher.createWhitelistFromHooks(EventDispatcher.java:696)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:484)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4650)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix$4.run(Felix.java:2123)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix.runInContext(Felix.java:2147)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.Felix.startBundle(Felix.java:2121)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)[org.apache.felix.framework-4.0.3.redhat-610379.jar:]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1247)[7:org.apache.felix.fileinstall:3.3.11.redhat-610379]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1219)[7:org.apache.felix.fileinstall:3.3.11.redhat-610379]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.startAllBundles(DirectoryWatcher.java:1208)[7:org.apache.felix.fileinstall:3.3.11.redhat-610379]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:503)[7:org.apache.felix.fileinstall:3.3.11.redhat-610379]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:291)[7:org.apache.felix.fileinstall:3.3.11.redhat-610379]
Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: {{uri}} due to: org.jasypt.exceptions.EncryptionOperationNotPossibleException
at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:480)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:71)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.model.RouteDefinition.resolveEndpoint(RouteDefinition.java:192)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:106)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:112)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.model.FromDefinition.resolveEndpoint(FromDefinition.java:72)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultRouteContext.getEndpoint(DefaultRouteContext.java:88)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:890)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:177)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
... 38 more
Caused by: org.apache.camel.RuntimeCamelException: org.jasypt.exceptions.EncryptionOperationNotPossibleException
at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1363)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.util.ObjectHelper.invokeMethod(ObjectHelper.java:1005)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.blueprint.BlueprintPropertiesParser.parseProperty(BlueprintPropertiesParser.java:137)[151:org.apache.camel.camel-blueprint:2.12.0.redhat-610379]
at org.apache.camel.component.properties.DefaultPropertiesParser.createPlaceholderPart(DefaultPropertiesParser.java:201)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.component.properties.DefaultPropertiesParser.doParseUri(DefaultPropertiesParser.java:105)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.component.properties.DefaultPropertiesParser.parseUri(DefaultPropertiesParser.java:51)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:160)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.component.properties.PropertiesComponent.parseUri(PropertiesComponent.java:119)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.resolvePropertyPlaceholders(DefaultCamelContext.java:1155)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:478)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
... 46 more
Caused by: org.jasypt.exceptions.EncryptionOperationNotPossibleException
at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.decrypt(StandardPBEByteEncryptor.java:918)
at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.decrypt(StandardPBEStringEncryptor.java:725)
at org.apache.karaf.jaas.jasypt.handler.EncryptablePropertyPlaceholder.getProperty(EncryptablePropertyPlaceholder.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.7.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[:1.7.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_25]
at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_25]
at org.apache.camel.util.ObjectHelper.invokeMethod(ObjectHelper.java:1001)[143:org.apache.camel.camel-core:2.12.0.redhat-610379]
... 54 more
I created a test bundle with a Blueprint Context which contains only one placeholder property defined in the Camel Context, without using the encrypted ENC() placeholder syntax. I just added <enc:property-placeholder> and the bundle failed to start with same exception (org.jasypt.exceptions.EncryptionOperationNotPossibleException).
Is this desired behavior?
My Blueprint configuration:
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"
xmlns:enc="http://karaf.apache.org/xmlns/jasypt/v1.0.0"
xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0">
<cm:property-placeholder persistent-id="encrypt.config" update-strategy="reload" >
<cm:default-properties>
<cm:property name="uri" value="timer://foo?fixedRate=true&period=6000"/>
</cm:default-properties>
</cm:property-placeholder>
<enc:property-placeholder>
<enc:encryptor class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
<property name="config">
<bean class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
<property name="algorithm" value="PBEWithMD5AndDES" />
<property name="password" value="password" />
</bean>
</property>
</enc:encryptor>
</enc:property-placeholder>
<camelContext xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://camel.apache.org/schema/blueprint"
xsi:schemaLocation="http://camel.apache.org/schema/blueprint">
<route>
<from uri="{{uri}}"/>
<log message="logging" loggingLevel="INFO" id="logBeforeService"></log>
</route>
</camelContext>
</blueprint>
EDIT: Response from RedHat Support
So this is a known issue, and theres a couple of Jira issues for it (here and here), and it appears as if the issue has been resolved in newer versions of Camel. I have tested with version 2.12.0.redhat-611412, provided by the patch named jboss-fuse-6.1.0.redhat-379-r1p3, and the exception is no longer being thrown.
Regardless of what I have said previously, im quite happy with this implementation. I would want an exception to be thrown if it couldnt decrypt a value which was actaully encrypted, and that is exactly what happens. I modified the encrypted value to ENC(invalid_and_should_throw_exception), and an exception was thrown exactly like I would expect it to.
Caused by: org.jasypt.exceptions.EncryptionOperationNotPossibleException
EDIT: A more concise Answer
Camel-Blueprint behaves differently to Camel-Core, in regards to the way that it resolves property placeholder values. Camel-Core requires the developer to define a Camel Property Placeholder Resolver, which resolves properties in the Camel Context, for the camel property syntax [1]. Obviously the reasoning behind this is to avoid conflicts between the spring property syntax [2] and the Camel Simple Expression Language syntax [3]. The developer has the choice to optionally bridge the Spring Property Placeholder Resolver with Camel by adding extra configuration.
[1 - Camel Property Syntax]
{{org.my.prop}}
[2 - Spring Property Syntax]
${org.my.prop}
[3 - Simple Expression Language Syntax]
${exchange.body}
In Camel-Blueprint, the bridging between the Blueprint Property Placeholder Resolvers and the Camel Context happens automatically. When a Blueprint Camel Context is created, the Blueprint Bundle Context is injected into it. With the Blueprint Bundle Context, Camel pulls all of the beans out of it and determines if they are assignable to the Apache Aries implementation AbstractPropertyPlaceholder. With each instance of the Property Placeholder Resolvers you have defined, Camel is then capable of calling the resolveProperty method on them, without having to parse the property syntax defined by each of the resolvers.
Because the Jasypt Property Placeholder Resolver expects the placeholder syntax [4], it just ignores everything which dosent match this syntax. Because Camel-Blueprint by-passes that validation which ensures the property syntax, we end up in a scenario where Camel is telling the Jasypt Placeholder Resolver to decrypt every property that we attempt to use in our Camel Context. This of course will throw an exception, because you’re trying to decrypt a property which hasn’t been encrypted.
[4 - Jasypt Blueprint Property Syntax]
ENC(encrypted.value)
Solutions:
Create a class which implements the Jasypt StringEncryptor and holds the StandardPBEStringEncryptor as an attribute. The implemented encrypt and decrypt methods call the encrypt and decrypt methods of the StandardPBEStringEncryptor, but catch any exceptions that are thrown.
This is the solution I gave in my original answer.
This is dangerous, if an encrypted value can’t be decrypted that shouldn’t be ignored. The bundle should not start up, to prevent e.g. your database account from getting locked.
Decrypt values manually before passing them to the Placeholder Resolver.
You could create a configuration service, where you compaile all your configuration from your various sources, decrypt all the encrypted values manually, then expose the properties as an OSGi service to be shared accross bundles.
I’ve gone off this design, it’s basically re-implementing the ConfigurationAdmin service which is provided natively by Karaf (with the addition of decryption which Karaf doesn’t provide), it’s just not as good as the one Karaf provides as it is not capable of detecting when application configuration has changed.
Decrypt values at runtime.
Not a fan of this either, requires your application to be aware of which application properties are expected to be encrypted.
I have raised a support ticket with Redhat through our support contract, I'll keep you updated if anything comes of it.
Original Answer:
I think I figured this one out. According to the camel documentation, in blueprint camel is capable of detecting that a blueprint placeholder resolver is present, and attempts to use that to resolve its properties.
The problem with this is that it does not care what the placeholder prefix and suffix is, it just goes ahead and uses it regarless. The Jasypt placeholder resolver has been desgined so that it is only even invoked if the placeholder prefix is "ENC(" and the suffix is ")", remember Camel dosent care about this. Camel passes its unresolved properties to the Jasypt property resolver, which of course attempts to decrypt them. Because they are not encrypted, an exception is thrown.
To get around this, I have created a custom encryptor which implements the Jasypt StringEncryptor. The custom encryptor contains an instance of the StandardPBEStingEncryptor, and uses that to do the actual encryption/ decryption. The key difference is that Exceptions are caught and ignored, so if an Exception is thrown trying to decrypt a camel property which isnt encrypted, then it is ignored and the application continues as normal.
The Java Class:
package uk.co.test;
import org.jasypt.encryption.StringEncryptor;
import org.jasypt.encryption.pbe.StandardPBEStringEncryptor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class CustomEncryptor implements StringEncryptor {
private StandardPBEStringEncryptor encryptor;
private static final Logger LOG = LoggerFactory.getLogger(CustomEncryptor.class);
public CustomEncryptor(String password) {
encryptor = new StandardPBEStringEncryptor();
encryptor.setPassword(password);
}
#Override
public String decrypt(String value) {
String ret = null;
try {
ret = encryptor.decrypt(value);
} catch (Exception e) {
LOG.error("Failed to decrypt value.");
}
return ret;
}
#Override
public String encrypt(String value) {
String ret = null;
try {
ret = encryptor.encrypt(value);
} catch (Exception e) {
LOG.error("Failed to encrypt value.");
}
return ret;
}
public StandardPBEStringEncryptor getEncryptor() {
return encryptor;
}
public void setEncryptor(StandardPBEStringEncryptor encryptor) {
this.encryptor = encryptor;
}
}
The Blueprint configuration:
<enc:property-placeholder>
<enc:encryptor class="uk.co.test.CustomEncryptor">
<argument value="myPass" />
</enc:encryptor>
</enc:property-placeholder>