Chart builder setup, release details endpoint

pom.xml

@@ -122,11 +122,5 @@
             <artifactId>sqlite-jdbc</artifactId>
             <version>3.27.2.1</version>
         </dependency>
-        <dependency>
-            <groupId>org.jetbrains</groupId>
-            <artifactId>annotations</artifactId>
-            <version>17.0.0</version>
-            <scope>compile</scope>
-        </dependency>
     </dependencies>
 </project>

src/main/java/net/simon987/musicgraph/Main.java

@@ -2,9 +2,7 @@ package net.simon987.musicgraph;
 
 import net.simon987.musicgraph.io.*;
 import net.simon987.musicgraph.logging.LogManager;
-import net.simon987.musicgraph.webapi.ArtistController;
+import net.simon987.musicgraph.webapi.*;
-import net.simon987.musicgraph.webapi.CoverController;
-import net.simon987.musicgraph.webapi.Index;
 import org.glassfish.grizzly.http.server.HttpServer;
 import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory;
 import org.glassfish.jersey.jackson.JacksonFeature;
@@ -18,7 +16,6 @@ public class Main {
     private final static Logger logger = LogManager.getLogger();
 
     public static void main(String[] args) {
-
         startHttpServer();
     }
 
@@ -28,12 +25,16 @@ public class Main {
 
         rc.registerInstances(new MusicDatabase());
         rc.registerInstances(new SQLiteCoverArtDatabase("covers.db"));
+        rc.registerInstances(new MagickChartBuilder("/dev/shm/im_chart/"));
 
         rc.registerClasses(Index.class);
         rc.registerClasses(ArtistController.class);
         rc.registerClasses(CoverController.class);
+        rc.registerClasses(ChartController.class);
         rc.registerClasses(JacksonFeature.class);
 
+        rc.registerClasses(MyExceptionMapper.class);
+
         try {
             HttpServer server = GrizzlyHttpServerFactory.createHttpServer(
                     new URI("http://localhost:3030/"),

src/main/java/net/simon987/musicgraph/entities/ReleaseDetails.java

@@ -0,0 +1,17 @@
+package net.simon987.musicgraph.entities;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ReleaseDetails {
+
+    public String name;
+    public String mbid;
+    public String artist;
+    public long year;
+    public List<Tag> tags;
+
+    public ReleaseDetails() {
+        this.tags = new ArrayList<>();
+    }
+}

src/main/java/net/simon987/musicgraph/io/ICoverArtDatabase.java

@@ -1,5 +1,8 @@
 package net.simon987.musicgraph.io;
 
+import java.util.HashMap;
+import java.util.List;
+
 public interface ICoverArtDatabase {
 
     /**
@@ -8,4 +11,6 @@ public interface ICoverArtDatabase {
      * @throws Exception if unexpected error
      */
     byte[] getCover(String mbid) throws Exception;
+
+    HashMap<String, byte[]> getCovers(List<String> mbids) throws Exception;
 }

src/main/java/net/simon987/musicgraph/io/MusicDatabase.java

@@ -155,4 +155,49 @@ public class MusicDatabase extends AbstractBinder {
         return relation;
     }
 
+    public ReleaseDetails getReleaseDetails(String mbid) {
+
+        Map<String, Object> params = new HashMap<>();
+        params.put("mbid", mbid);
+
+        try (Session session = driver.session()) {
+
+            StatementResult result = query(session,
+                    "MATCH (release:Release {id: $mbid})-[:CREDITED_FOR]-(a:Artist)\n" +
+                            "OPTIONAL MATCH (release)-[r:IS_TAGGED]->(t:Tag)\n" +
+                            "RETURN release {name:release.name, year:release.year," +
+                            "tags:collect({weight:r.weight, name:t.name}), artist: a.name}\n" +
+                            "LIMIT 1",
+                    params);
+
+            ReleaseDetails details = new ReleaseDetails();
+
+            try {
+
+                if (result.hasNext()) {
+                    Map<String, Object> map = result.next().get("release").asMap();
+
+                    details.mbid = mbid;
+                    details.name = (String) map.get("name");
+                    details.artist = (String) map.get("artist");
+                    details.year = (long) map.get("year");
+                    details.tags.addAll(
+                            ((List<Map>) map.get("tags"))
+                                    .stream()
+                                    .filter(x -> x.get("name") != null)
+                                    .map(x -> new Tag(
+                                            (String) x.get("name"),
+                                            (Long) x.get("weight")
+                                    ))
+                                    .collect(Collectors.toList())
+                    );
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+            return details;
+        }
+    }
+
 }

src/main/java/net/simon987/musicgraph/io/SQLiteCoverArtDatabase.java

@@ -4,6 +4,8 @@ import net.simon987.musicgraph.logging.LogManager;
 import org.glassfish.jersey.internal.inject.AbstractBinder;
 
 import java.sql.*;
+import java.util.HashMap;
+import java.util.List;
 import java.util.logging.Logger;
 
 public class SQLiteCoverArtDatabase extends AbstractBinder implements ICoverArtDatabase {
@@ -47,6 +49,33 @@ public class SQLiteCoverArtDatabase extends AbstractBinder implements ICoverArtD
         }
     }
 
+    public HashMap<String, byte[]> getCovers(List<String> mbids) throws SQLException {
+
+        HashMap<String, byte[]> covers = new HashMap<>(mbids.size());
+
+        try {
+            setupConn();
+
+            PreparedStatement stmt = connection.prepareStatement(
+                    //TODO: sqlite injection
+                    String.format("SELECT id, cover FROM covers WHERE id IN ('%s')",
+                            String.join("','", mbids))
+            );
+            ResultSet rs = stmt.executeQuery();
+
+            while (rs.next()) {
+                covers.put(rs.getString(1), rs.getBytes(2));
+            }
+
+            return covers;
+
+        } catch (SQLException e) {
+            logger.severe(String.format("Exception during cover art query mbid=%s ex=%s",
+                    mbids, e.getMessage()));
+            throw e;
+        }
+    }
+
     private void setupConn() throws SQLException {
         try {
             if (connection == null || connection.isClosed()) {

src/main/java/net/simon987/musicgraph/logging/MusicGraphFormatter.java

@@ -9,7 +9,7 @@ import java.util.logging.LogRecord;
 
 public class MusicGraphFormatter extends Formatter {
 
-    private static final DateFormat dateFormat = new SimpleDateFormat("MM-dd HH:mm:ss");
+    private static final DateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
 
     @Override
     public String format(LogRecord record) {

src/main/java/net/simon987/musicgraph/webapi/ChartController.java

@@ -0,0 +1,48 @@
+package net.simon987.musicgraph.webapi;
+
+import net.simon987.musicgraph.io.ICoverArtDatabase;
+import net.simon987.musicgraph.io.MusicDatabase;
+
+import javax.inject.Inject;
+import javax.ws.rs.GET;
+import javax.ws.rs.NotFoundException;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Path("/chart")
+public class ChartController {
+
+    @Inject
+    IChartBuilder chartBuilder;
+
+    @Inject
+    ICoverArtDatabase coverArtDatabase;
+
+    @Inject
+    private MusicDatabase musicDatabase;
+
+    @GET
+    @Produces("image/png")
+    public byte[] makeChart() throws Exception {
+        var opt = new ChartOptions();
+
+        throw new NotFoundException();
+
+//        List<String> releases = new ArrayList<>();
+//
+//        opt.cols = 4;
+//        opt.rows = 5;
+//        opt.covers = coverArtDatabase.getCovers(releases);
+//        opt.backgroundColor = "blue";
+//        opt.details = releases
+//                .parallelStream() // Thread-safe?
+//                .map(r -> musicDatabase.getReleaseDetails(r))
+//                .collect(Collectors.toList());
+//
+//        return chartBuilder.makeChart(opt);
+    }
+}

src/main/java/net/simon987/musicgraph/webapi/ChartOptions.java

@@ -0,0 +1,18 @@
+package net.simon987.musicgraph.webapi;
+
+import net.simon987.musicgraph.entities.ReleaseDetails;
+
+import java.util.HashMap;
+import java.util.List;
+
+public class ChartOptions {
+
+    public HashMap<String, byte[]> covers;
+    public List<ReleaseDetails> details;
+    public int rows;
+    public int cols;
+    public String backgroundColor;
+    public String textColor = "white";
+    public String font = "Hack-Regular";
+    public String borderColor = "white";
+}

src/main/java/net/simon987/musicgraph/webapi/IChartBuilder.java

@@ -0,0 +1,6 @@
+package net.simon987.musicgraph.webapi;
+
+public interface IChartBuilder {
+
+    byte[] makeChart(ChartOptions options) throws Exception;
+}

src/main/java/net/simon987/musicgraph/webapi/MagickChartBuilder.java

@@ -0,0 +1,306 @@
+package net.simon987.musicgraph.webapi;
+
+import net.simon987.musicgraph.entities.ReleaseDetails;
+import org.glassfish.jersey.internal.inject.AbstractBinder;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+public class MagickChartBuilder extends AbstractBinder implements IChartBuilder {
+
+    private String workspacePath;
+    private File workspace;
+
+    private static final String[] letters = new String[]{
+            "A", "B", "C", "D", "E", "F", "G", "H", "I"
+    };
+
+    @Override
+    protected void configure() {
+        bind(this).to(IChartBuilder.class);
+    }
+
+    public MagickChartBuilder(String workspacePath) {
+        this.workspacePath = workspacePath;
+        this.workspace = new File(workspacePath);
+    }
+
+    @Override
+    public byte[] makeChart(ChartOptions options) throws Exception {
+
+        ProcessBuilder processBuilder = new ProcessBuilder();
+        List<String> releases = options.details.stream().map(o -> o.mbid).collect(Collectors.toList());
+
+        File chartWorkspace = makeChartWorkspace();
+
+        saveCoversToDisk(options, chartWorkspace);
+        makeGrid(options, chartWorkspace, releases);
+        File header = makeHeader(options, chartWorkspace);
+        File side = makeSide(options, chartWorkspace);
+
+        // Side + grid
+        processBuilder
+                .directory(chartWorkspace)
+                .command(
+                        "convert",
+                        "+append",
+                        side.toString(),
+                        "grid.png",
+                        "grid_with_side.png"
+                )
+                .start()
+                .waitFor();
+
+        // Side + grid
+        processBuilder
+                .directory(chartWorkspace)
+                .command(
+                        "convert",
+                        "-append",
+                        "-gravity", "east",
+                        header.toString(),
+                        "grid_with_side.png",
+                        "final_grid.png"
+                )
+                .start()
+                .waitFor();
+
+        makeDescription(options, chartWorkspace);
+
+        // + description
+        processBuilder
+                .directory(chartWorkspace)
+                .command(
+                        "convert",
+                        "+append",
+                        "-gravity", "south",
+                        "final_grid.png",
+                        "description.png",
+                        "final.png"
+                )
+                .start()
+                .waitFor();
+
+
+        FileInputStream file = new FileInputStream(new File(chartWorkspace, "final.png"));
+        byte[] chart = file.readAllBytes();
+        file.close();
+
+        cleanup(chartWorkspace);
+
+        return chart;
+    }
+
+    private void cleanup(File chartWorkspace) {
+        String[] entries = chartWorkspace.list();
+        if (entries != null) {
+            for (String s : entries) {
+                File currentFile = new File(chartWorkspace, s);
+                currentFile.delete();
+            }
+        }
+        chartWorkspace.delete();
+    }
+
+    private File makeChartWorkspace() throws IOException {
+        String chartId = UUID.randomUUID().toString();
+
+        File chartWorkspace = new File(workspacePath, chartId);
+        if (!chartWorkspace.mkdir()) {
+            throw new IOException(String.format("Could not create chart workspace: %s", chartWorkspace.getAbsolutePath()));
+        }
+        return chartWorkspace;
+    }
+
+    private void saveCoversToDisk(ChartOptions options, File chartWorkspace) throws IOException {
+        for (ReleaseDetails releaseDetails : options.details) {
+            if (options.covers.containsKey(releaseDetails.mbid)) {
+                FileOutputStream file = new FileOutputStream(new File(chartWorkspace, releaseDetails.mbid));
+                file.write(options.covers.get(releaseDetails.mbid));
+                file.close();
+            }
+        }
+    }
+
+    private void makeDescription(ChartOptions options, File chartWorkspace)
+            throws InterruptedException, IOException {
+
+        ProcessBuilder processBuilder = new ProcessBuilder();
+
+        for (int i = 0; i < options.rows; i++) {
+
+            String desc = formatDescription(options, i);
+
+            processBuilder
+                    .directory(chartWorkspace)
+                    .command(
+                            "convert",
+                            "-size", "620x316",
+                            "xc:" + options.backgroundColor,
+                            "-fill", options.textColor,
+                            "-pointsize", "20",
+                            "-font", options.font,
+                            "-annotate", "+0+40", desc,
+                            String.format("d_%d.png", i)
+                    )
+                    .start()
+                    .waitFor();
+            processBuilder
+                    .directory(chartWorkspace)
+                    .command(
+                            "convert",
+                            "-append",
+                            "d_*.png",
+                            "description.png"
+                    )
+                    .start()
+                    .waitFor();
+        }
+    }
+
+    private static String formatDescription(ChartOptions options, int row) {
+
+        StringBuilder sb = new StringBuilder();
+
+        for (int col = 0; col < options.cols; col++) {
+
+            int releaseIndex = row * options.cols + col;
+            if (releaseIndex >= options.details.size()) {
+                break;
+            }
+
+            ReleaseDetails release = options.details.get(releaseIndex);
+
+            String year = release.year != 0 ? String.format("(%s)", release.year) : "";
+
+            if (release.name.length() + release.artist.length() < 40) {
+                sb.append(String.format("%s%d %s - %s %s\n",
+                        letters[row], col+1,
+                        release.name, release.artist, year));
+            } else {
+                sb.append(String.format("%s%d %s -\n\t\t\t %s %s\n",
+                        letters[row], col+1,
+                        release.name, release.artist, year));
+            }
+        }
+        return sb.toString();
+    }
+
+    private void makeGrid(ChartOptions options, File chartWorkspace, List<String> releases)
+            throws InterruptedException, IOException {
+
+        ProcessBuilder processBuilder = new ProcessBuilder();
+
+        List<String> cmd = new ArrayList<>();
+        cmd.add("montage");
+        cmd.addAll(releases);
+        cmd.add("-tile");
+        cmd.add(String.format("%dx%d", options.cols, options.rows));
+        cmd.add("-background");
+        cmd.add(options.backgroundColor);
+        cmd.add("-border");
+        cmd.add("1");
+        cmd.add("-bordercolor");
+        cmd.add(options.borderColor);
+        cmd.add("-geometry");
+        cmd.add("256x256+30+30");
+        cmd.add("grid.png");
+
+        processBuilder
+                .directory(chartWorkspace)
+                .command(cmd)
+                .start()
+                .waitFor();
+    }
+
+    private File makeSide(ChartOptions options, File chartWorkSpace)
+            throws InterruptedException, IOException {
+
+        File sideFile = new File(chartWorkSpace, "side.png");
+
+        ProcessBuilder processBuilder = new ProcessBuilder();
+
+        for (int i = 0; i < options.rows; i++) {
+            processBuilder
+                    .directory(chartWorkSpace)
+                    .command(
+                            "convert",
+                            "-background", options.backgroundColor,
+                            "-gravity", "east",
+                            "-size", "60x256",
+                            "-fill", options.textColor,
+                            "-pointsize", "64",
+                            "-font", options.font,
+                            "-strip",
+                            String.format("label:%s", letters[i]),
+                            String.format("s_%d.png", i + 1)
+                    )
+                    .start()
+                    .waitFor();
+        }
+
+        processBuilder
+                .directory(chartWorkSpace)
+                .command(
+                        "montage",
+                        "-tile", "1x",
+                        "-background", options.backgroundColor,
+                        "-geometry", "+0+31",
+                        "s_*.png",
+                        sideFile.toString()
+                )
+                .start()
+                .waitFor();
+
+        return sideFile;
+    }
+
+    private File makeHeader(ChartOptions options, File chartWorkspace)
+            throws InterruptedException, IOException {
+
+        File headerFile = new File(chartWorkspace, "header.png");
+        ProcessBuilder processBuilder = new ProcessBuilder();
+
+        // Header
+        for (int i = 1; i <= options.cols; i++) {
+            processBuilder
+                    .directory(chartWorkspace)
+                    .command(
+                            "convert",
+                            "-background", options.backgroundColor,
+                            "-gravity", "south",
+                            "-size", "256x80",
+                            "-fill", options.textColor,
+                            "-chop", "0x12",
+                            "-pointsize", "64",
+                            "-font", options.font,
+                            "-strip",
+                            String.format("label:%d", i),
+                            String.format("h_%d.png", i)
+                    )
+                    .start()
+                    .waitFor();
+        }
+
+        processBuilder
+                .directory(chartWorkspace)
+                .command(
+                        "montage",
+                        "-tile", "x1",
+                        "h_*.png",
+                        "-background", options.backgroundColor,
+                        "-geometry", "+31+0",
+                        headerFile.toString()
+                )
+                .start()
+                .waitFor();
+
+        return headerFile;
+    }
+}

src/main/java/net/simon987/musicgraph/webapi/MyExceptionMapper.java

@@ -0,0 +1,22 @@
+package net.simon987.musicgraph.webapi;
+
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+import javax.ws.rs.ext.Provider;
+
+import org.glassfish.grizzly.utils.Exceptions;
+
+@Provider
+public class MyExceptionMapper implements ExceptionMapper<Throwable> {
+    @Override
+    public Response toResponse(Throwable ex) {
+
+        //TODO: logger
+
+        return Response.status(500)
+                .entity(Exceptions.getStackTraceAsString(ex))
+                .type("text/plain")
+                .build();
+    }
+}
+