From 5c24dc5c9642a8d9ed70aee4c950fd0678a1ebec Mon Sep 17 00:00:00 2001
From: Jon Bratseth <bratseth@gmail.com>
Date: Thu, 19 May 2022 12:03:06 +0200
Subject: Rename the 'searchdefinition' package to 'schema'

---
 .../java/com/yahoo/schema/derived/Derived.java     | 141 +++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 config-model/src/main/java/com/yahoo/schema/derived/Derived.java

(limited to 'config-model/src/main/java/com/yahoo/schema/derived/Derived.java')

diff --git a/config-model/src/main/java/com/yahoo/schema/derived/Derived.java b/config-model/src/main/java/com/yahoo/schema/derived/Derived.java
new file mode 100644
index 00000000000..9943a02a2f2
--- /dev/null
+++ b/config-model/src/main/java/com/yahoo/schema/derived/Derived.java
@@ -0,0 +1,141 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.schema.derived;
+
+import com.yahoo.config.ConfigInstance;
+import com.yahoo.config.ConfigInstance.Builder;
+import com.yahoo.document.Field;
+import com.yahoo.io.IOUtils;
+import com.yahoo.schema.Index;
+import com.yahoo.schema.Schema;
+import com.yahoo.schema.document.ImmutableSDField;
+import com.yahoo.schema.document.SDDocumentType;
+import com.yahoo.schema.document.SDField;
+import com.yahoo.text.StringUtilities;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.lang.reflect.Method;
+import java.util.List;
+
+/**
+ * Superclass of all derived configurations
+ *
+ * @author bratseth
+ */
+public abstract class Derived implements Exportable {
+
+    private String name;
+
+    public Derived() {
+        this("");
+    }
+
+    public Derived(String name) {
+        this.name = name;
+    }
+
+    public String getName() { return name; }
+
+    protected final void setName(String name) { this.name = name; }
+
+    /**
+     * Derives the content of this configuration. This
+     * default calls derive(Document) for each document
+     * and derive(SDField) for each search definition level field
+     * AND sets the name of this to the name of the input search definition
+     */
+    protected void derive(Schema schema) {
+        setName(schema.getName());
+        derive(schema.getDocument(), schema);
+        for (Index index : schema.getExplicitIndices())
+            derive(index, schema);
+        for (SDField field : schema.allExtraFields())
+            derive(field, schema);
+        schema.allImportedFields().forEach(importedField -> derive(importedField, schema));
+    }
+
+
+    /**
+     * Derives the content of this configuration. This
+     * default calls derive(SDField) for each document field
+     */
+    protected void derive(SDDocumentType document, Schema schema) {
+        for (Field field : document.fieldSet()) {
+            SDField sdField = (SDField) field;
+            if ( ! sdField.isExtraField()) {
+                derive(sdField, schema);
+            }
+        }
+    }
+
+    /**
+     * Derives the content of this configuration. This
+     * default does nothing.
+     */
+    protected void derive(ImmutableSDField field, Schema schema) {}
+
+    /**
+     * Derives the content of this configuration. This
+     * default does nothing.
+     */
+    protected void derive(Index index, Schema schema) {
+    }
+
+    protected abstract String getDerivedName();
+
+    /** Returns the value of getName if true, the given number as a string otherwise */
+    protected String getIndex(int number, boolean labels) {
+        return labels ? getName() : String.valueOf(number);
+    }
+
+    /**
+     * Exports this derived configuration to its .cfg file
+     * in toDirectory
+     *
+     * @param toDirectory the directory to export to, or null
+     *
+     */
+    public final void export(String toDirectory) throws IOException {
+        Writer writer = null;
+        try {
+            String fileName = getDerivedName() + ".cfg";
+            if (toDirectory != null)
+                writer = IOUtils.createWriter(toDirectory + "/" + fileName,false);
+            try {
+                exportBuilderConfig(writer);
+            } catch (ReflectiveOperationException | SecurityException | IllegalArgumentException e) {
+                throw new RuntimeException(e);
+            }
+        }
+        finally {
+            if (writer != null) IOUtils.closeWriter(writer);
+        }
+    }
+
+    /**
+     * Checks what this is a producer of, instantiate that and export to writer
+     */
+    // TODO move to ReflectionUtil, and move that to unexported pkg
+    private void exportBuilderConfig(Writer writer) throws ReflectiveOperationException, SecurityException, IllegalArgumentException, IOException {
+        for (Class<?> intf : getClass().getInterfaces()) {
+            if (ConfigInstance.Producer.class.isAssignableFrom(intf)) {
+                Class<?> configClass = intf.getEnclosingClass();
+                String builderClassName = configClass.getCanonicalName()+"$Builder";
+                Class<?> builderClass = Class.forName(builderClassName);
+                ConfigInstance.Builder builder = (Builder) builderClass.getDeclaredConstructor().newInstance();
+                Method getConfig = getClass().getMethod("getConfig", builderClass);
+                getConfig.invoke(this, builder);
+                ConfigInstance inst = (ConfigInstance) configClass.getConstructor(builderClass).newInstance(builder);
+                List<String> payloadL = ConfigInstance.serialize(inst);
+                String payload = StringUtilities.implodeMultiline(payloadL);
+                writer.write(payload);
+            }
+        }
+    }
+
+    @Override
+    public String getFileName() {
+        return getDerivedName() + ".cfg";
+    }
+
+}
-- 
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