Examples of cascading.pipe.Pipe

cascading.pipe.Pipe
Class Pipe is used to name branches in pipe assemblies, and as a base class for core processing model types, specifically {@link Each}, {@link Every}, {@link GroupBy}, {@link CoGroup}, {@link Merge}, {@link HashJoin}, and {@link SubAssembly}.
Pipes are chained together through their constructors.
To effect a split in the pipe, simply pass a Pipe instance to two or more constructors of subsequent Pipe instances.
A join can be achieved by passing two or more Pipe instances to a {@link CoGroup} or {@link HashJoin} pipe.
A merge can be achieved by passing two or more Pipe instances to a {@link GroupBy} or {@link Merge} pipe. @see Each @see Every @see GroupBy @see Merge @see CoGroup @see HashJoin @see SubAssembly

    @Test
    public void testWriteToESWithAlias() throws Exception {
        // local file-system source
        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/alias", new Fields("name", "url", "picture"));
        Pipe pipe = new Pipe("copy");


        // rename "id" -> "garbage"
        pipe = new Each(pipe, new Identity(new Fields("garbage", "name", "url", "picture", "ts")));


        Properties props = new TestSettings().getProperties();

View Full Code Here


        // local file-system source
        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/non-existing", new Fields("name", "url", "picture"));


        Pipe pipe = new Pipe("copy");


        // rename "id" -> "garbage"
        pipe = new Each(pipe, new Identity(new Fields("garbage", "name", "url", "picture", "ts")));
        build(properties, in, out, pipe);
    }

View Full Code Here

    @Test
    public void testFieldMapping() throws Exception {
        // local file-system source
        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/fieldmapping", new Fields("name", "url", "picture"));
        Pipe pipe = new Pipe("copy");


        // rename "id" -> "garbage"
        pipe = new Each(pipe, new Identity(new Fields("garbage", "name", "url", "picture", "ts")));


        Properties props = new TestSettings().getProperties();

View Full Code Here

        Properties properties = new TestSettings().getProperties();


        // local file-system source
        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/pattern-{id}", new Fields("id", "name", "url", "picture"));
        Pipe pipe = new Pipe("copy");
        build(properties, in, out, pipe);
    }

View Full Code Here

        Properties properties = new TestSettings().getProperties();


        // local file-system source
        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/pattern-format-{ts:YYYY-MM-dd}", new Fields("id", "name", "url", "picture", "ts"));
        Pipe pipe = new Pipe("copy");


        build(properties, in, out, pipe);
    }

View Full Code Here

        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/createwithid", new Fields("id", "name", "url", "picture"));
        Properties props = new TestSettings().getProperties();
        props.put(ConfigurationOptions.ES_MAPPING_ID, "id");


        Pipe pipe = new Pipe("copy");
        build(props, in, out, pipe);
    }

View Full Code Here


        Tap in = sourceTap();
        // use an existing id to allow the update to succeed
        Tap out = new EsTap("cascading-local/createwithid", new Fields("id", "name", "url", "picture"));


        Pipe pipe = new Pipe("copy");
        build(properties, in, out, pipe);
    }

View Full Code Here


        Tap in = sourceTap();
        // use an existing id to allow the update to succeed
        Tap out = new EsTap("cascading-local/createwithid", new Fields("id", "name", "url", "picture"));


        Pipe pipe = new Pipe("copy");
        build(properties, in, out, pipe);
    }

View Full Code Here


        Tap in = sourceTap();
        // use an existing id to allow the update to succeed
        Tap out = new EsTap("cascading-local/createwithid", new Fields("id", "name", "url", "picture"));


        Pipe pipe = new Pipe("copy");
        build(properties, in, out, pipe);
    }

View Full Code Here

        properties.put(ConfigurationOptions.ES_MAPPING_ID, "id");


        Tap in = sourceTap();
        Tap out = new EsTap("cascading-local/upsert", new Fields("id", "name", "url", "picture"));


        Pipe pipe = new Pipe("copy");
        build(properties, in, out, pipe);
    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of cascading.pipe.Pipe

bixo.fetcher.FetcherTest

bixo.pipes.AbstractFetchPipeTest

cascading.BasicPipesPlatformTest

cascading.BasicTrapPlatformTest

cascading.BufferPipesPlatformTest

cascading.cascade.CascadePlatformTest

cascading.cascade.hadoop.RiffleCascadePlatformTest

cascading.cascade.ParallelCascadePlatformTest

cascading.CoGroupFieldedPipesPlatformTest

cascading.DistanceUseCasePlatformTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.