Example usage for org.apache.lucene.index FieldInfos getMergedFieldInfos

Introduction

In this page you can find the example usage for org.apache.lucene.index FieldInfos getMergedFieldInfos.

Prototype

public static FieldInfos getMergedFieldInfos(IndexReader reader) 

Source Link

Document

Call this to get the (merged) FieldInfos for a composite reader.

Usage

From source file:org.apache.tika.eval.tools.SlowCompositeReaderWrapper.java

License:Apache License

SlowCompositeReaderWrapper(CompositeReader reader) throws IOException {
    in = reader;/* w ww .j  av a2s .c o  m*/
    in.registerParentReader(this);
    if (reader.leaves().isEmpty()) {
        metaData = new LeafMetaData(Version.LATEST.major, Version.LATEST, null);
    } else {
        Version minVersion = Version.LATEST;
        for (LeafReaderContext leafReaderContext : reader.leaves()) {
            Version leafVersion = leafReaderContext.reader().getMetaData().getMinVersion();
            if (leafVersion == null) {
                minVersion = null;
                break;
            } else if (minVersion.onOrAfter(leafVersion)) {
                minVersion = leafVersion;
            }
        }
        metaData = new LeafMetaData(reader.leaves().get(0).reader().getMetaData().getCreatedVersionMajor(),
                minVersion, null);
    }
    fieldInfos = FieldInfos.getMergedFieldInfos(in);
}

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