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added export to elasticsearch. The export dump can easily be imported to
elasticsearch using the command curl -XPOST localhost:9200/collection1/yacy/_bulk --data-binary @yacy_dump_XXX.flatjson
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177 changes: 177 additions & 0 deletions
177
source/net/yacy/cora/federate/solr/responsewriter/FlatJSONResponseWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| /** | ||
| * FlatJSONResponseWriter | ||
| * Copyright 2017 by Michael Peter Christen | ||
| * First released 30.03.2017 at http://yacy.net | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program in the file lgpl21.txt | ||
| * If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package net.yacy.cora.federate.solr.responsewriter; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.Writer; | ||
| import java.util.Collection; | ||
| import java.util.Date; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
||
| import org.apache.lucene.document.Document; | ||
| import org.apache.lucene.index.IndexableField; | ||
| import org.apache.solr.common.SolrDocument; | ||
| import org.apache.solr.common.util.NamedList; | ||
| import org.apache.solr.common.util.SimpleOrderedMap; | ||
| import org.apache.solr.common.util.XML; | ||
| import org.apache.solr.request.SolrQueryRequest; | ||
| import org.apache.solr.response.QueryResponseWriter; | ||
| import org.apache.solr.response.ResultContext; | ||
| import org.apache.solr.response.SolrQueryResponse; | ||
| import org.apache.solr.schema.FieldType; | ||
| import org.apache.solr.schema.IndexSchema; | ||
| import org.apache.solr.schema.SchemaField; | ||
| import org.apache.solr.schema.TextField; | ||
| import org.apache.solr.search.DocIterator; | ||
| import org.apache.solr.search.DocList; | ||
| import org.apache.solr.search.SolrIndexSearcher; | ||
| import org.apache.solr.util.DateFormatUtil; | ||
| import org.json.simple.JSONArray; | ||
|
|
||
| import net.yacy.cora.federate.solr.SolrType; | ||
| import net.yacy.cora.util.JSONObject; | ||
|
|
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| public class FlatJSONResponseWriter implements QueryResponseWriter { | ||
|
|
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| private static final char lb = '\n'; | ||
|
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| private boolean elasticsearchBulkRequest; | ||
|
|
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| public FlatJSONResponseWriter(boolean elasticsearchBulkRequest) { | ||
| this.elasticsearchBulkRequest = elasticsearchBulkRequest; | ||
| } | ||
|
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| @Override | ||
| public String getContentType(SolrQueryRequest arg0, SolrQueryResponse arg1) { | ||
| return "application/json; charset=UTF-8"; | ||
| } | ||
|
|
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| @Override | ||
| public void init(@SuppressWarnings("rawtypes") NamedList arg0) { | ||
| } | ||
|
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| @Override | ||
| public void write(final Writer writer, final SolrQueryRequest request, final SolrQueryResponse rsp) throws IOException { | ||
| NamedList<?> values = rsp.getValues(); | ||
| DocList response = ((ResultContext) values.get("response")).docs; | ||
| writeDocs(writer, request, response); | ||
| } | ||
|
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| private static final void writeDocs(final Writer writer, final SolrQueryRequest request, final DocList response) throws IOException { | ||
| boolean includeScore = false; | ||
| final int sz = response.size(); | ||
| SolrIndexSearcher searcher = request.getSearcher(); | ||
| DocIterator iterator = response.iterator(); | ||
| includeScore = includeScore && response.hasScores(); | ||
| IndexSchema schema = request.getSchema(); | ||
| for (int i = 0; i < sz; i++) { | ||
| int id = iterator.nextDoc(); | ||
| Document doc = searcher.doc(id); | ||
| writeDoc(writer, schema, null, doc.getFields(), (includeScore ? iterator.score() : 0.0f), includeScore); | ||
| } | ||
| } | ||
|
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| private static final void writeDoc(final Writer writer, final IndexSchema schema, final String name, final List<IndexableField> fields, final float score, final boolean includeScore) throws IOException { | ||
| JSONObject json = new JSONObject(true); | ||
|
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| int sz = fields.size(); | ||
| int fidx1 = 0, fidx2 = 0; | ||
| while (fidx1 < sz) { | ||
| IndexableField value = fields.get(fidx1); | ||
| String fieldName = value.name(); | ||
| fidx2 = fidx1 + 1; | ||
| while (fidx2 < sz && fieldName.equals(fields.get(fidx2).name())) { | ||
| fidx2++; | ||
| } | ||
| SchemaField sf = schema == null ? null : schema.getFieldOrNull(fieldName); | ||
| if (sf == null) { | ||
| sf = new SchemaField(fieldName, new TextField()); | ||
| } | ||
| FieldType type = sf.getType(); | ||
| if (fidx1 + 1 == fidx2) { | ||
| if (sf.multiValued()) { | ||
| JSONArray a = new JSONArray(); | ||
| json.put(fieldName, a); | ||
| JSONObject j = new JSONObject(); | ||
| String sv = value.stringValue(); | ||
| setValue(j, type.getTypeName(), "x", sv); //sf.write(this, null, f1); | ||
| a.add(j.get("x")); | ||
| } else { | ||
| setValue(json, type.getTypeName(), value.name(), value.stringValue()); | ||
| } | ||
| } else { | ||
| JSONArray a = new JSONArray(); | ||
| json.put(fieldName, a); | ||
| for (int i = fidx1; i < fidx2; i++) { | ||
| String sv = fields.get(i).stringValue(); | ||
| JSONObject j = new JSONObject(); | ||
| setValue(j, type.getTypeName(), "x", sv); //sf.write(this, null, f1); | ||
| a.add(j.get("x")); | ||
| } | ||
| } | ||
| fidx1 = fidx2; | ||
| } | ||
| writer.write(json.toString()); | ||
| writer.write(lb); | ||
| } | ||
|
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| private static void setValue(final JSONObject json, final String typeName, final String name, final String value) { | ||
| if (typeName.equals(SolrType.text_general.printName()) || | ||
| typeName.equals(SolrType.string.printName()) || | ||
| typeName.equals(SolrType.text_en_splitting_tight.printName())) { | ||
| json.put(name, value); | ||
| } else if (typeName.equals(SolrType.bool.printName())) { | ||
| json.put(name, "F".equals(value) ? false : true); | ||
| } else if (typeName.equals(SolrType.num_integer.printName())) { | ||
| json.put(name, Long.parseLong(value)); | ||
| } else if (typeName.equals(SolrType.num_long.printName())) { | ||
| json.put(name, Long.parseLong(value)); | ||
| } else if (typeName.equals(SolrType.date.printName())) { | ||
| json.put(name, DateFormatUtil.formatExternal(new Date(Long.parseLong(value)))); | ||
| } else if (typeName.equals(SolrType.num_float.printName())) { | ||
| json.put(name, Double.parseDouble(value)); | ||
| } else if (typeName.equals(SolrType.num_double.printName())) { | ||
| json.put(name, Double.parseDouble(value)); | ||
| } | ||
| } | ||
|
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| public static final void writeDoc(final Writer writer, final SolrDocument doc) throws IOException { | ||
| JSONObject json = new JSONObject(true); | ||
| final Map<String, Object> fields = doc.getFieldValueMap(); | ||
| for (String key: fields.keySet()) { | ||
| if (key == null) continue; | ||
| Object value = doc.get(key); | ||
| if (value == null) { | ||
| } else if (value instanceof Collection<?>) { | ||
| JSONArray a = new JSONArray(); | ||
| json.put(key, a); | ||
| for (Object o: ((Collection<?>) value)) { | ||
| a.add(o); | ||
| } | ||
| } else { | ||
| json.put(key, value); | ||
| } | ||
| } | ||
| writer.write(json.toString()); | ||
| writer.write(lb); | ||
| } | ||
| } |
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