X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fio%2FFileParse.java;h=f1d79fe62375b4c2950b6e8e093cfc673e1bb515;hb=08ea977287323e63781dddf6f461c0011833bcc2;hp=62237d972cf01eab016c4072263b8c73a18cfc59;hpb=59d682209891099d46b960509907c79e3fb276fe;p=jalview.git
diff --git a/src/jalview/io/FileParse.java b/src/jalview/io/FileParse.java
index 62237d9..f1d79fe 100755
--- a/src/jalview/io/FileParse.java
+++ b/src/jalview/io/FileParse.java
@@ -1,24 +1,46 @@
/*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8)
- * Copyright (C) 2012 J Procter, AM Waterhouse, LM Lui, J Engelhardt, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
*
* This file is part of Jalview.
*
* Jalview is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
*
* Jalview 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 General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along with Jalview. If not, see
+ * If the response status includes + * + *
+ * Content-Type : application/x-gzip + *+ * + * then tries to read as gzipped content. + * + * @param urlStr + * @throws IOException + * @throws MalformedURLException + */ + private void checkURLSource(String urlStr) + throws IOException, MalformedURLException { errormessage = "URL NOT FOUND"; - URL url = new URL(fileStr); - dataIn = new BufferedReader(new InputStreamReader(url.openStream())); - // record URL as name of datasource. - dataName = fileStr; - return false; + URL url = new URL(urlStr); + URLConnection _conn = url.openConnection(); + if (_conn instanceof HttpURLConnection) + { + HttpURLConnection conn = (HttpURLConnection) _conn; + int rc = conn.getResponseCode(); + if (rc != HttpURLConnection.HTTP_OK) + { + throw new IOException( + "Response status from " + urlStr + " was " + rc); + } + } else { + try { + dataIn = checkForGzipStream(_conn.getInputStream()); + dataName=urlStr; + } catch (IOException ex) + { + throw new IOException("Failed to handle non-HTTP URI stream",ex); + } catch (Exception ex) + { + throw new IOException("Failed to determine type of input stream for given URI",ex); + } + return; + } + String encoding = _conn.getContentEncoding(); + String contentType = _conn.getContentType(); + boolean isgzipped = "application/x-gzip".equalsIgnoreCase(contentType) + || "gzip".equals(encoding); + Exception e = null; + InputStream inputStream = _conn.getInputStream(); + if (isgzipped) + { + try + { + dataIn = getGzipReader(inputStream); + dataName = urlStr; + } catch (Exception e1) + { + throw new IOException(MessageManager + .getString("exception.failed_to_resolve_gzip_stream"), e); + } + return; + } + + dataIn = new BufferedReader(new InputStreamReader(inputStream)); + dataName = urlStr; + return; } /** @@ -179,23 +354,47 @@ public class FileParse } /** + * not for general use, creates a fileParse object for an existing reader with + * configurable values for the origin and the type of the source + */ + public FileParse(BufferedReader source, String originString, + DataSourceType sourceType) + { + dataSourceType = sourceType; + error = false; + inFile = null; + dataName = originString; + dataIn = source; + try + { + if (dataIn.markSupported()) + { + dataIn.mark(READAHEAD_LIMIT); + } + } catch (IOException q) + { + + } + } + + /** * Create a datasource for input to Jalview. See AppletFormatAdapter for the * types of sources that are handled. * * @param fileStr * - datasource locator/content - * @param type + * @param sourceType * - protocol of source * @throws MalformedURLException * @throws IOException */ - public FileParse(String fileStr, String type) + public FileParse(String fileStr, DataSourceType sourceType) throws MalformedURLException, IOException { - this.type = type; + this.dataSourceType = sourceType; error = false; - if (type.equals(AppletFormatAdapter.FILE)) + if (sourceType == DataSourceType.FILE) { if (checkFileSource(fileStr)) { @@ -204,18 +403,21 @@ public class FileParse { if (checkFileSource(suffixLess)) { - throw new IOException("Problem opening " + inFile - + " (also tried " + suffixLess + ") : " + errormessage); + throw new IOException(MessageManager.formatMessage( + "exception.problem_opening_file_also_tried", + new String[] + { inFile.getName(), suffixLess, errormessage })); } } else { - throw new IOException("Problem opening " + inFile + " : " - + errormessage); + throw new IOException(MessageManager.formatMessage( + "exception.problem_opening_file", new String[] + { inFile.getName(), errormessage })); } } } - else if (type.equals(AppletFormatAdapter.URL)) + else if (sourceType == DataSourceType.URL) { try { @@ -223,7 +425,9 @@ public class FileParse { checkURLSource(fileStr); if (suffixSeparator == '#') + { extractSuffix(fileStr); // URL lref is stored for later reference. + } } catch (IOException e) { String suffixLess = extractSuffix(fileStr); @@ -250,13 +454,13 @@ public class FileParse error = true; } } - else if (type.equals(AppletFormatAdapter.PASTE)) + else if (sourceType == DataSourceType.PASTE) { errormessage = "PASTE INACCESSIBLE!"; dataIn = new BufferedReader(new StringReader(fileStr)); dataName = "Paste"; } - else if (type.equals(AppletFormatAdapter.CLASSLOADER)) + else if (sourceType == DataSourceType.CLASSLOADER) { errormessage = "RESOURCE CANNOT BE LOCATED"; java.io.InputStream is = getClass() @@ -265,7 +469,9 @@ public class FileParse { String suffixLess = extractSuffix(fileStr); if (suffixLess != null) + { is = getClass().getResourceAsStream("/" + suffixLess); + } } if (is != null) { @@ -280,14 +486,15 @@ public class FileParse else { errormessage = "PROBABLE IMPLEMENTATION ERROR : Datasource Type given as '" - + (type != null ? type : "null") + "'"; + + (sourceType != null ? sourceType : "null") + "'"; error = true; } if (dataIn == null || error) { // pass up the reason why we have no source to read from - throw new IOException("Failed to read data from source:\n" - + errormessage); + throw new IOException(MessageManager.formatMessage( + "exception.failed_to_read_data_from_source", new String[] + { errormessage })); } error = false; dataIn.mark(READAHEAD_LIMIT); @@ -307,17 +514,35 @@ public class FileParse } else { - throw new IOException("Unitialised Source Stream"); + throw new IOException( + MessageManager.getString("exception.no_init_source_stream")); } } public String nextLine() throws IOException { if (!error) + { return dataIn.readLine(); - throw new IOException("Invalid Source Stream:" + errormessage); + } + throw new IOException(MessageManager + .formatMessage("exception.invalid_source_stream", new String[] + { errormessage })); } + /** + * + * @return true if this FileParse is configured for Export only + */ + public boolean isExporting() + { + return !error && dataIn == null; + } + + /** + * + * @return true if the data source is valid + */ public boolean isValid() { return !error; @@ -336,19 +561,27 @@ public class FileParse } /** - * rewinds the datasource the beginning. + * Rewinds the datasource to the marked point if possible + * + * @param bytesRead * */ - public void reset() throws IOException + public void reset(int bytesRead) throws IOException { + if (bytesRead >= READAHEAD_LIMIT) + { + System.err.println(String.format( + "File reset error: read %d bytes but reset limit is %d", + bytesRead, READAHEAD_LIMIT)); + } if (dataIn != null && !error) { dataIn.reset(); } else { - throw new IOException( - "Implementation Error: Reset called for invalid source."); + throw new IOException(MessageManager.getString( + "error.implementation_error_reset_called_for_invalid_source")); } } @@ -415,4 +648,64 @@ public class FileParse } return null; } + + public AlignViewportI getViewport() + { + return viewport; + } + + public void setViewport(AlignViewportI viewport) + { + this.viewport = viewport; + } + + /** + * @return the currently configured exportSettings for writing data. + */ + public AlignExportSettingI getExportSettings() + { + return exportSettings; + } + + /** + * Set configuration for export of data. + * + * @param exportSettings + * the exportSettings to set + */ + public void setExportSettings(AlignExportSettingI exportSettings) + { + this.exportSettings = exportSettings; + } + + /** + * method overridden by complex file exporter/importers which support + * exporting visualisation and layout settings for a view + * + * @param avpanel + */ + public void configureForView(AlignmentViewPanel avpanel) + { + if (avpanel != null) + { + setViewport(avpanel.getAlignViewport()); + } + // could also set export/import settings + } + + /** + * Returns the preferred feature colour configuration if there is one, else + * null + * + * @return + */ + public FeatureSettingsModelI getFeatureColourScheme() + { + return null; + } + + public DataSourceType getDataSourceType() + { + return dataSourceType; + } }