gCubeSystem
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discovery-client
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merged from trunk 

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/branches/information-system/discovery-client/1.0@67597 82a268e6-3cf1-43bd-a215-b396298e98cf
This commit is contained in:
fabio.simeoni 2013-01-15 10:44:07 +00:00
parent baa2e55c92
commit ec5cd1ea03
3 changed files with 1 additions and 52 deletions
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6
pom.xml
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@ -27,12 +27,6 @@
<dependencies>
<dependency>
<groupId>org.gcube.data.access</groupId>
<artifactId>streams</artifactId>
<version>[2.0.0-SNAPSHOT,3.0.0-SNAPSHOT)</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>

12
src/main/java/org/gcube/resources/discovery/client/api/DiscoveryClient.java
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@ -2,7 +2,6 @@ package org.gcube.resources.discovery.client.api;
import java.util.List;
import org.gcube.data.streams.Stream;
import org.gcube.resources.discovery.client.queries.api.Query;
/**
@ -27,15 +26,4 @@ public interface DiscoveryClient<R> {
* tolerance to parsing errors before raising this exception.
*/
List<R> submit(Query query) throws DiscoveryException, InvalidResultException;
/**
* Submits a {@link Query} for remote execution and returns a {@link Stream} of typed results.
* <p>
* Parsing errors may and should be delivered as {@link InvalidResultException}s during stream iteration.
*
* @param query the query
* @return the results
* @throws DiscoveryException if the query cannot be submitted
*/
Stream<R> submitForStream(Query query) throws DiscoveryException;
}

33
src/main/java/org/gcube/resources/discovery/client/impl/DelegateClient.java
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@ -1,14 +1,8 @@
package org.gcube.resources.discovery.client.impl;
import static org.gcube.data.streams.dsl.Streams.*;
import java.util.ArrayList;
import java.util.List;
import org.gcube.data.streams.Stream;
import org.gcube.data.streams.exceptions.StreamSkipSignal;
import org.gcube.data.streams.exceptions.StreamStopSignal;
import org.gcube.data.streams.generators.Generator;
import org.gcube.resources.discovery.client.api.DiscoveryClient;
import org.gcube.resources.discovery.client.api.DiscoveryException;
import org.gcube.resources.discovery.client.api.InvalidResultException;
@ -71,31 +65,4 @@ public class DelegateClient<R> implements DiscoveryClient<R> {
return parsed;
}
/**
* {@inheritDoc}
* <p>
* Result parsing errors are only logged as long as they do results are successfully parsed. Otherwise, the
* client flags the parsing errors as likely due to the parser itself.
*/
public Stream<R> submitForStream(Query query) throws DiscoveryException {
Stream<String> unparsed = inner.submitForStream(query);
return pipe(unparsed).through(new ParsingGenerator());
}
//helper
private class ParsingGenerator implements Generator<String,R> {
public R yield(String result) throws StreamSkipSignal, StreamStopSignal {
try {
return parser.parse(result);
}
catch(Exception e) {
throw new InvalidResultException(e);
}
}
}
}