Example usage for org.apache.lucene.util CharsRefBuilder toCharsRef

Introduction

In this page you can find the example usage for org.apache.lucene.util CharsRefBuilder toCharsRef.

Prototype

public CharsRef toCharsRef() 

Source Link

Document

Build a new CharsRef that has the same content as this builder.

Usage

From source file:org.codelibs.elasticsearch.search.suggest.completion.context.ContextMappings.java

License:Apache License

/**
 * Wraps a {CompletionQuery} with context queries
 *
 * @param query base completion query to wrap
 * @param queryContexts a map of context mapping name and collected query contexts
 * @return a context-enabled query/*from   www .  java2 s  .  com*/
 */
public ContextQuery toContextQuery(CompletionQuery query,
        Map<String, List<ContextMapping.InternalQueryContext>> queryContexts) {
    ContextQuery typedContextQuery = new ContextQuery(query);
    if (queryContexts.isEmpty() == false) {
        CharsRefBuilder scratch = new CharsRefBuilder();
        scratch.grow(1);
        for (int typeId = 0; typeId < contextMappings.size(); typeId++) {
            scratch.setCharAt(0, (char) typeId);
            scratch.setLength(1);
            ContextMapping mapping = contextMappings.get(typeId);
            List<ContextMapping.InternalQueryContext> internalQueryContext = queryContexts.get(mapping.name());
            if (internalQueryContext != null) {
                for (ContextMapping.InternalQueryContext context : internalQueryContext) {
                    scratch.append(context.context);
                    typedContextQuery.addContext(scratch.toCharsRef(), context.boost, !context.isPrefix);
                    scratch.setLength(1);
                }
            }
        }
    }
    return typedContextQuery;
}

---

From source file:org.elasticsearch.search.suggest.filteredsuggest.filter.FilterMappings.java

License:Apache License

/**
 * Wraps a {@link CompletionQuery} with context queries
 *
 * @param query/*from   w w w . j a va  2  s .c om*/
 *            base completion query to wrap
 * @param queryFilters
 *            a map of context mapping name and collected query contexts
 * @return context-enabled queries
 */
public List<ContextQuery> toContextQuery(CompletionQuery query,
        Map<String, List<ContextMapping.InternalQueryContext>> queryFilters) {
    List<ContextQuery> queries = new ArrayList<>(4);

    List<ContextMapping.InternalQueryContext> internalQueryContext = queryFilters.get("default_empty");
    if (internalQueryContext != null) {
        ContextQuery typedContextQuery = new ContextQuery(query);
        CharsRefBuilder scratch = new CharsRefBuilder();
        scratch.grow(1);

        ContextMapping.InternalQueryContext context = internalQueryContext.get(0);
        scratch.append(context.context);
        typedContextQuery.addContext(scratch.toCharsRef(), context.boost, !context.isPrefix);

        queries.add(typedContextQuery);

        return queries;
    }

    if (queryFilters.isEmpty() == false) {
        CharsRefBuilder scratch = new CharsRefBuilder();
        scratch.grow(1);
        for (String name : queryFilters.keySet()) {
            internalQueryContext = queryFilters.get(name);
            if (internalQueryContext != null) {
                ContextQuery typedContextQuery = new ContextQuery(query);
                for (ContextMapping.InternalQueryContext context : internalQueryContext) {
                    scratch.append(context.context);
                    typedContextQuery.addContext(scratch.toCharsRef(), context.boost, !context.isPrefix);
                    scratch.setLength(0);
                }
                queries.add(typedContextQuery);
            }
        }
    }

    return queries;
}

---