goldenChat base source add

2026-05-23 15:11:48 +09:00
commit a4ea7762b5
2081 changed files with 1155760 additions and 0 deletions
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+/*
+ * SPDX-License-Identifier: MIT
+ */
+package ta4jexamples.datasources.json;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.ta4j.core.BarSeries;
+import org.ta4j.core.utils.DeprecationNotifier;
+
+import java.io.*;
+
+/**
+ * @deprecated
+ *             <p>
+ *             Use {@link JsonFileBarSeriesDataSource} instead. Scheduled for
+ *             removal in 0.24.0.
+ *             </p>
+ */
+@Deprecated(since = "0.19", forRemoval = true)
+public class JsonBarsSerializer {
+
+    private static final Logger LOG = LogManager.getLogger(JsonBarsSerializer.class);
+
+    public JsonBarsSerializer() {
+        warnDeprecatedUse();
+    }
+
+    private static void warnDeprecatedUse() {
+        DeprecationNotifier.warnOnce(JsonBarsSerializer.class,
+                "ta4jexamples.datasources.json.JsonFileBarSeriesDataSource", "0.24.0");
+    }
+
+    @Deprecated(since = "0.19", forRemoval = true)
+    public static void persistSeries(BarSeries series, String filename) {
+        warnDeprecatedUse();
+        GsonBarSeries exportableSeries = GsonBarSeries.from(series);
+        Gson gson = new GsonBuilder().setPrettyPrinting().create();
+        FileWriter writer = null;
+        try {
+            writer = new FileWriter(filename);
+            gson.toJson(exportableSeries, writer);
+            LOG.debug("Bar series '{}' successfully saved to '{}'", series.getName(), filename);
+        } catch (IOException e) {
+            LOG.error("Unable to store bars in JSON", e);
+        } finally {
+            if (writer != null) {
+                try {
+                    writer.flush();
+                    writer.close();
+                } catch (IOException e) {
+                    LOG.warn("Unable to flush and/or close file writer", e);
+                }
+            }
+        }
+    }
+
+    @Deprecated(since = "0.19", forRemoval = true)
+    public static BarSeries loadSeries(String filename) {
+        warnDeprecatedUse();
+        Gson gson = new Gson();
+        FileReader reader = null;
+        BarSeries result = null;
+        try {
+            reader = new FileReader(filename);
+            GsonBarSeries loadedSeries = gson.fromJson(reader, GsonBarSeries.class);
+
+            result = loadedSeries.toBarSeries();
+            LOG.debug("Bar series '" + result.getName() + "' successfully loaded. #Entries: " + result.getBarCount());
+        } catch (FileNotFoundException e) {
+            LOG.error("Unable to load bars from JSON", e);
+        } finally {
+            try {
+                if (reader != null)
+                    reader.close();
+            } catch (IOException e) {
+                LOG.warn("Unable to close file reader", e);
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Loads a BarSeries from the provided InputStream containing JSON data. The
+     * method parses the JSON content using Gson library and converts it to a
+     * BarSeries object. If the input stream is null or parsing fails, appropriate
+     * warning or error messages are logged and null is returned.
+     *
+     * @deprecated
+     *             <p>
+     *             Use {@link JsonFileBarSeriesDataSource#loadSeries(String)}
+     *             instead.
+     *
+     * @param inputStream the input stream containing JSON data to be parsed into a
+     *                    BarSeries
+     * @return the loaded BarSeries object, or null if loading fails or input stream
+     *         is null
+     */
+    @Deprecated(since = "0.19", forRemoval = true)
+    public static BarSeries loadSeries(InputStream inputStream) {
+        warnDeprecatedUse();
+        if (inputStream == null) {
+            LOG.warn("Input stream is null, returning null");
+            return null;
+        }
+
+        Gson gson = new Gson();
+        InputStreamReader reader = null;
+        BarSeries result = null;
+        try {
+            reader = new InputStreamReader(inputStream);
+            GsonBarSeries loadedSeries = gson.fromJson(reader, GsonBarSeries.class);
+
+            if (loadedSeries == null) {
+                LOG.warn("Failed to parse JSON, loadedSeries is null");
+                return null;
+            }
+
+            result = loadedSeries.toBarSeries();
+            LOG.debug("Bar series '" + result.getName() + "' successfully loaded. #Entries: " + result.getBarCount());
+        } catch (Exception e) {
+            LOG.error("Unable to load bars from JSON", e);
+        } finally {
+            try {
+                if (reader != null)
+                    reader.close();
+            } catch (IOException e) {
+                LOG.warn("Error closing input stream reader", e);
+            }
+        }
+        return result;
+    }
+}