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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.demo;
import com.yahoo.component.provider.ListenableFreezableClass;
import com.yahoo.processing.Processor;
import com.yahoo.processing.Request;
import com.yahoo.processing.Response;
import com.yahoo.processing.execution.Execution;
import com.yahoo.processing.response.ArrayDataList;
import com.yahoo.processing.response.Data;
import com.yahoo.processing.response.DataList;
import com.yahoo.yolean.chain.After;
import com.yahoo.yolean.chain.Provides;
/**
* A processor making a nested result sets of "normalized" strings from the
* request property {@link AnnotatingProcessor.DemoProperty#NAME}.
*/
@Provides(DataProcessor.DemoData.NAME)
@After(AnnotatingProcessor.DemoProperty.NAME)
public class DataProcessor extends Processor {
public static class DemoData extends ListenableFreezableClass implements Data {
public static final String NAME = "DemoData";
private final Request request;
private final String content;
DemoData(Request request, String content) {
this.request = request;
this.content = content;
}
@Override
public Request request() {
return request;
}
public String content() {
return content;
}
public String toString() {
return NAME + "(\"" + content + "\")";
}
}
private final DemoComponent termChecker;
public DataProcessor(DemoComponent termChecker) {
this.termChecker = termChecker;
}
@Override
public Response process(Request request, Execution execution) {
Response r = new Response(request);
@SuppressWarnings("unchecked")
DataList<Data> current = r.data();
DataList<Data> previous = null;
String exampleProperty = request.properties().getString(DemoHandler.REQUEST_URI);
Object o = request.properties().get(AnnotatingProcessor.DemoProperty.NAME_AS_COMPOUND);
if (exampleProperty != null) {
current.add(new DemoData(request, exampleProperty));
}
if (o instanceof AnnotatingProcessor.DemoProperty) {
// create a nested result set with a level for each term
for (String s : ((AnnotatingProcessor.DemoProperty) o).terms()) {
String normalized = termChecker.normalize(s);
DemoData data = new DemoData(request, normalized);
if (current == null) {
current = ArrayDataList.create(request);
}
current.add(data);
if (previous != null) {
previous.add(current);
}
previous = current;
current = null;
}
}
return r;
}
}
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