Revision 7707
Added by Jing Tao about 11 years ago
| MetacatSolrIndex.java | ||
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import edu.ucsb.nceas.metacat.DBTransform; |
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import edu.ucsb.nceas.metacat.MetaCatServlet; |
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import edu.ucsb.nceas.metacat.common.SolrQueryResponseWriterFactory; |
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import edu.ucsb.nceas.metacat.common.SolrServerFactory; |
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import edu.ucsb.nceas.utilities.PropertyNotFoundException; |
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public static final String SOLR_COLLECTION_NAME_PROPERTY_NAME = "solr.collectionName"; |
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public static final String SOLR_SERVER_CLASSNAME_PROPERTY_NAME = "solr.server.classname"; |
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private static final String WT = "wt";//the property name to specify the return type |
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private static final String XML = "xml"; |
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private static final String JSON = "json"; |
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private static final String PYTHON = "python"; |
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private static final String RUBY = "ruby"; |
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private static final String PHP = "php"; |
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private static final String PHPS = "phps"; |
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private static final String VELOCITY = "velocity"; |
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private static final String CSV ="csv"; |
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private static List<String> supportedWriterTypes = null; |
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private static final String VERSION = "3.4"; |
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private static final String SOLRCONFDIR = "/conf"; |
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private MetacatSolrIndex() throws Exception {
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// these are handled directly by solr |
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supportedWriterTypes = new ArrayList<String>(); |
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supportedWriterTypes.add(CSV); |
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supportedWriterTypes.add(JSON); |
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supportedWriterTypes.add(PHP); |
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supportedWriterTypes.add(PHPS); |
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supportedWriterTypes.add(RUBY); |
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supportedWriterTypes.add(VELOCITY); |
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supportedWriterTypes.add(PYTHON); |
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supportedWriterTypes.add(XML); |
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.CSV);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.JSON);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.PHP);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.PHPS);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.RUBY);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.VELOCITY);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.PYTHON);
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supportedWriterTypes.add(SolrQueryResponseWriterFactory.XML);
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generateSolrServer(); |
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} |
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String qformat = wt; |
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// perform the solr query using wt=XML |
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wt = XML; |
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wt = SolrQueryResponseWriterFactory.XML;
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ModifiableSolrParams msp = new ModifiableSolrParams(solrParams); |
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msp.set(WT, wt); |
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QueryResponse response = solrServer.query(msp); |
| ... | ... | |
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*/ |
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private InputStream transformResults(SolrParams request, QueryResponse response, String wt) throws SolrServerException, IOException {
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//InputStream stream = null; |
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QueryResponseWriter writer = generateResponseWriter(wt); |
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QueryResponseWriter writer = SolrQueryResponseWriterFactory.generateResponseWriter(wt);
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Writer results = new StringWriter(); |
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SolrQueryResponse sResponse = new SolrQueryResponse(); |
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sResponse.setAllValues(response.getResponse()); |
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return new ByteArrayInputStream(results.toString().getBytes(MetaCatServlet.DEFAULT_ENCODING)); |
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} |
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/* Here is the list of the handler class to handle different format. |
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* <queryResponseWriter name="xml" default="true" class="solr.XMLResponseWriter" /> |
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* <queryResponseWriter name="json" class="solr.JSONResponseWriter"/> |
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* <queryResponseWriter name="python" class="solr.PythonResponseWriter"/> |
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* <queryResponseWriter name="ruby" class="solr.RubyResponseWriter"/> |
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* <queryResponseWriter name="php" class="solr.PHPResponseWriter"/> |
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* <queryResponseWriter name="phps" class="solr.PHPSerializedResponseWriter"/> |
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* <queryResponseWriter name="velocity" class="solr.VelocityResponseWriter"/> |
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* <queryResponseWriter name="csv" class="solr.CSVResponseWriter"/> |
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*/ |
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private QueryResponseWriter generateResponseWriter(String wt) throws SolrServerException {
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QueryResponseWriter writer = null; |
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if(wt == null || wt.trim().equals("") || wt.equals(XML)) {
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writer = new XMLResponseWriter(); |
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} else if(wt.equals(JSON)) {
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writer = new JSONResponseWriter(); |
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} else if(wt.equals(PYTHON)) {
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writer = new PythonResponseWriter(); |
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} else if(wt.equals(RUBY)) {
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writer = new RubyResponseWriter(); |
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} else if(wt.equals(PHP)) {
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writer = new PHPResponseWriter(); |
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} else if(wt.equals(PHPS)) {
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writer = new PHPSerializedResponseWriter(); |
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} else if(wt.equals(VELOCITY)) {
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writer = new VelocityResponseWriter(); |
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} else if(wt.equals(CSV)) {
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writer = new CSVResponseWriter(); |
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} else {
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throw new SolrServerException("Metacat doesn't support this response format "+wt);
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} |
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return writer; |
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} |
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} |
Also available in: Unified diff
Move the code to generate the QueryResponseWriter to the metacat-common module. So it can be shared with the metacat-index module.