org.elasticsearch.search.SearchPhase Maven / Gradle / Ivy
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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.search;
import org.elasticsearch.search.internal.SearchContext;
import org.elasticsearch.tasks.Task;
/**
* Represents a phase of a search request e.g. query, fetch etc.
*/
public interface SearchPhase {
/**
* Performs pre processing of the search context before the execute.
*/
void preProcess(SearchContext context);
/**
* Executes the search phase
*/
void execute(SearchContext context);
class SearchContextSourcePrinter {
private final SearchContext searchContext;
public SearchContextSourcePrinter(SearchContext searchContext) {
this.searchContext = searchContext;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append(searchContext.indexShard().shardId());
builder.append(" ");
if (searchContext.request() != null &&
searchContext.request().source() != null) {
builder.append("source[").append(searchContext.request().source().toString()).append("], ");
} else {
builder.append("source[], ");
}
if (searchContext.getTask() != null &&
searchContext.getTask().getHeader(Task.X_OPAQUE_ID) != null) {
builder.append("id[").append(searchContext.getTask().getHeader(Task.X_OPAQUE_ID)).append("], ");
} else {
builder.append("id[], ");
}
return builder.toString();
}
}
}