[30996] | 1 | package org.hathitrust.extractedfeatures;
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| 2 |
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| 3 | import java.io.BufferedReader;
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| 4 | import java.io.BufferedWriter;
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| 5 | import java.io.IOException;
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| 6 | import java.io.InputStreamReader;
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| 7 | import java.io.OutputStream;
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| 8 | import java.net.HttpURLConnection;
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| 9 | import java.net.URL;
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| 10 | import java.util.ArrayList;
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| 11 | import java.util.Set;
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| 12 |
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| 13 | import org.apache.commons.compress.compressors.CompressorException;
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| 14 | import org.apache.spark.api.java.function.FlatMapFunction;
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| 15 | import org.apache.spark.api.java.function.VoidFunction;
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| 16 | import org.apache.spark.util.DoubleAccumulator;
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| 17 | import org.json.JSONArray;
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| 18 | import org.json.JSONObject;
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| 19 |
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| 20 | /*
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| 21 | class PagedJSON implements Function<String, Boolean> {
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| 22 |
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| 23 | private static final long serialVersionUID = 1L;
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| 24 |
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| 25 | public Boolean call(String s) { return s.contains("a"); }
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| 26 | }
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| 27 | */
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| 28 |
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| 29 |
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| 30 | //class PagedJSON implements FlatMapFunction<String, String>
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| 31 | public class PagedJSON implements VoidFunction<String>
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| 32 | {
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| 33 | private static final long serialVersionUID = 1L;
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| 34 |
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| 35 | protected String _input_dir;
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| 36 | protected String _solr_url;
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| 37 | protected String _output_dir;
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| 38 | protected int _verbosity;
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| 39 |
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| 40 | DoubleAccumulator _progress_accum;
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| 41 | double _progress_step;
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| 42 |
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| 43 | public PagedJSON(String input_dir, String solr_url, String output_dir, int verbosity,
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| 44 | DoubleAccumulator progress_accum, double progress_step)
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| 45 | {
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| 46 | _input_dir = input_dir;
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| 47 | _solr_url = solr_url;
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| 48 | _output_dir = output_dir;
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| 49 | _verbosity = verbosity;
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| 50 |
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| 51 | _progress_accum = progress_accum;
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| 52 | _progress_step = progress_step;
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| 53 | }
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| 54 |
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| 55 | protected static void saveSolrDoc(JSONObject solr_add_doc_json, String output_file_json_bz2)
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| 56 | {
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| 57 | try {
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| 58 | BufferedWriter bw = ClusterFileIO.getBufferedWriterForCompressedFile(output_file_json_bz2);
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| 59 | bw.write(solr_add_doc_json.toString());
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| 60 | bw.close();
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| 61 | } catch (IOException e) {
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| 62 | e.printStackTrace();
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| 63 | } catch (CompressorException e) {
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| 64 | e.printStackTrace();
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | protected static void postSolrDoc(String post_url, JSONObject solr_add_doc_json)
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| 69 | {
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| 70 |
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| 71 | //String curl_popen = "curl -X POST -H 'Content-Type: application/json'";
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| 72 | //curl_popen += " 'http://10.11.0.53:8983/solr/htrc-pd-ef/update'";
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| 73 | //curl_popen += " --data-binary '";
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| 74 | //curl_popen += "'"
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| 75 |
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| 76 |
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| 77 | try {
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| 78 | HttpURLConnection httpcon = (HttpURLConnection) ((new URL(post_url).openConnection()));
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| 79 | httpcon.setDoOutput(true);
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| 80 | httpcon.setRequestProperty("Content-Type", "application/json");
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| 81 | httpcon.setRequestProperty("Accept", "application/json");
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| 82 | httpcon.setRequestMethod("POST");
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| 83 | httpcon.connect();
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| 84 |
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| 85 | byte[] outputBytes = solr_add_doc_json.toString().getBytes("UTF-8");
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| 86 | OutputStream os = httpcon.getOutputStream();
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| 87 | os.write(outputBytes);
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| 88 | os.close();
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| 89 |
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| 90 |
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| 91 | // Read response
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| 92 | StringBuilder sb = new StringBuilder();
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| 93 | BufferedReader in = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));
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| 94 | String decodedString;
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| 95 | while ((decodedString = in.readLine()) != null) {
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| 96 | sb.append(decodedString);
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| 97 | }
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| 98 | in.close();
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| 99 |
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| 100 | JSONObject solr_status_json = new JSONObject(sb.toString());
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| 101 | JSONObject response_header_json = solr_status_json.getJSONObject("responseHeader");
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| 102 | if (response_header_json != null) {
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| 103 | int status = response_header_json.getInt("status");
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| 104 | if (status != 0) {
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| 105 | System.err.println("Warning: POST request to " + post_url + " returned status " + status);
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| 106 | System.err.println("Full response was: " + sb);
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| 107 | }
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| 108 | }
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| 109 | else {
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| 110 | System.err.println("Failed response to Solr POST: " + sb);
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| 111 | }
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| 112 |
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| 113 |
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| 114 |
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| 115 | }
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| 116 | catch (Exception e) {
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| 117 | e.printStackTrace();
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| 118 | }
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| 119 |
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| 120 | }
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| 121 |
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| 122 | //public Iterator<String> call(String json_file_in)
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| 123 | public void call(String json_file_in)
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| 124 | {
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| 125 | JSONObject extracted_feature_record = JSONClusterFileIO.readJSONFile(_input_dir + "/" + json_file_in);
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| 126 |
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| 127 | String volume_id = extracted_feature_record.getString("id");
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| 128 |
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| 129 | //JSONObject ef_metadata = extracted_feature_record.getJSONObject("metadata");
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| 130 | //String title= ef_metadata.getString("title");
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| 131 |
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| 132 | JSONObject ef_features = extracted_feature_record.getJSONObject("features");
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| 133 |
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| 134 |
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| 135 | int ef_page_count = ef_features.getInt("pageCount");
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| 136 |
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| 137 | if (_verbosity >= 1) {
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| 138 | System.out.println("Processing: " + json_file_in);
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| 139 | System.out.println(" pageCount = " + ef_page_count);
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| 140 | }
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| 141 |
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| 142 | JSONArray ef_pages = ef_features.getJSONArray("pages");
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| 143 | int ef_num_pages = ef_pages.length();
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| 144 |
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| 145 | // Make directory for page-level JSON output
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| 146 | String json_dir = ClusterFileIO.removeSuffix(json_file_in,".json.bz2");
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| 147 | String page_json_dir = json_dir + "/pages";
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| 148 | ClusterFileIO.createDirectoryAll(_output_dir + "/" + page_json_dir);
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| 149 |
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| 150 | ArrayList<String> ids = new ArrayList<String>(ef_num_pages);
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| 151 | for (int i = 0; i < ef_page_count; i++) {
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| 152 | String formatted_i = String.format("page-%06d", i);
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| 153 | String page_id = volume_id + "." + formatted_i;
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| 154 |
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| 155 | if (_verbosity >= 2) {
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| 156 | System.out.println(" Page: " + page_id);
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| 157 | }
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| 158 |
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| 159 | String output_json_bz2 = page_json_dir +"/" + formatted_i + ".json.bz2";
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| 160 | ids.add(output_json_bz2);
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| 161 |
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| 162 | if (i==0) {
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| 163 | System.out.println("Sample output JSON page file: " + output_json_bz2);
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| 164 | }
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| 165 |
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| 166 | JSONObject ef_page = ef_pages.getJSONObject(i);
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| 167 |
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| 168 | if (ef_page != null) {
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| 169 | // Convert to Solr add form
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| 170 | JSONObject solr_add_doc_json = JSONSolrTransform.generateSolrDocJSON(volume_id, page_id, ef_page);
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| 171 |
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| 172 | if (i==20) {
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| 173 | System.out.println("==================");
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| 174 | System.out.println("Sample output Solr add JSON [page 20]: " + solr_add_doc_json.toString());
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| 175 | System.out.println("==================");
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| 176 | }
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| 177 |
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| 178 |
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| 179 | if (_solr_url != null) {
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| 180 | if (i==20) {
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| 181 | System.out.println("==================");
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| 182 | System.out.println("Posting to: " + _solr_url);
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| 183 | System.out.println("==================");
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| 184 | }
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| 185 | postSolrDoc(_solr_url, solr_add_doc_json);
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| 186 | }
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| 187 |
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| 188 | if (_output_dir != null) {
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| 189 | if (i==20) {
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| 190 | System.out.println("==================");
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| 191 | System.out.println("Saving to: " + _output_dir);
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| 192 | System.out.println("==================");
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| 193 | }
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| 194 | saveSolrDoc(solr_add_doc_json, _output_dir + "/" + output_json_bz2);
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| 195 | }
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| 196 | }
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| 197 | else {
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| 198 | System.err.println("Skipping: " + page_id);
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| 199 | }
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| 200 |
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| 201 | }
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| 202 |
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| 203 |
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| 204 | ids.add(volume_id);
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| 205 | _progress_accum.add(_progress_step);
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| 206 |
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| 207 | //return ids.iterator();
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| 208 | }
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| 209 | }
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| 210 |
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