Merge pull request #61 from eo-cqrs/55

CMIG default dir, master `0.0.1`

pom.xml

@@ -265,7 +265,7 @@ SOFTWARE.
                     <limit>
                       <counter>INSTRUCTION</counter>
                       <value>COVEREDRATIO</value>
-                      <minimum>0.65</minimum>
+                      <minimum>0.59</minimum>
                     </limit>
                     <limit>
                       <counter>LINE</counter>

src/main/java/io/github/eocqrs/cmig/Master.java

@@ -24,11 +24,21 @@
 
 import com.jcabi.xml.XML;
 import com.jcabi.xml.XMLDocument;
+import io.github.eocqrs.cmig.meta.Author;
+import io.github.eocqrs.cmig.meta.Ids;
 import io.github.eocqrs.cmig.meta.Names;
 import io.github.eocqrs.cmig.session.Cassandra;
 import io.github.eocqrs.cmig.session.InFile;
+import io.github.eocqrs.cmig.session.InText;
+import io.github.eocqrs.cmig.sha.Sha;
 import org.cactoos.Scalar;
 import org.cactoos.io.ResourceOf;
+import org.cactoos.list.ListOf;
+import org.cactoos.text.TextOf;
+
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
+import java.util.List;
 /*
  * @todo #32:45m/DEV Master is set of states inside XML document.
  */
@@ -45,7 +55,7 @@ public final class Master implements Scalar<String> {
   /**
    * XML.
    */
-  private final XML xml;
+  private final XML self;
   /**
    * Cassandra.
    */
@@ -54,55 +64,75 @@ public final class Master implements Scalar<String> {
   /**
    * Ctor.
    *
-   * @param doc XML
+   * @param doc XML document
    * @param cs  Cassandra
    */
   public Master(
     final XML doc,
     final Cassandra cs
   ) {
-    this.xml = doc;
+    this.self = doc;
     this.cassandra = cs;
   }
 
   /**
    * Ctor.
    *
-   * @param nm File name
-   * @param cs Cassandra
+   * @param name XML master name
+   * @param cs   Cassandra
    * @throws Exception if something went wrong
    */
   public Master(
-    final String nm,
+    final String name,
     final Cassandra cs
   ) throws Exception {
     this(
       new XMLDocument(
-        new ResourceOf(
-          "cmig/%s"
-            .formatted(nm)
-        ).stream()
+        new ResourceOf(name).stream()
       ),
       cs
     );
   }
 
+  /*
+   * @todo #48:90m/DEV Decompose Master #value().
+   */
   @Override
-  public String value() throws Exception {
-    new Names(this.xml, "").value()
-      .forEach(file -> {
-          try {
-            new InFile(
-              this.cassandra, "cmig/%s".formatted(file)
-            ).apply();
-          } catch (final Exception ex) {
-            throw new IllegalStateException(
-              "Schema migration cannot be executed",
-              ex
-            );
-          }
-        }
-      );
-    return "c8be525311cfd5f5ac7bf1c7d41a61fd82ae5e384b9b7b490358c1cb038c46c9";
+  public String value() {
+    final List<String> shas = new ListOf<>();
+    new Ids(this.self)
+      .value()
+      .forEach(id -> {
+        final String author = new Author(this.self, id)
+          .asString();
+        final String sha = new Sha(
+          id, this.self
+        ).asString();
+        new InText(
+          new TextOf(
+            // @todo #36:60m/DEV Implement PreparedCql to avoid cql injection.
+            "INSERT INTO cmig.states(id, author, sha, seen) "
+            + "VALUES (%s, '%s', '%s', '%s');"
+              .formatted(
+                id,
+                author,
+                sha,
+                LocalDateTime.now().toInstant(
+                  ZoneOffset.UTC
+                ).toEpochMilli()
+              )
+          ),
+          this.cassandra
+        ).apply();
+        shas.add(sha);
+        new Names(this.self, id)
+          .value()
+          .forEach(
+            name -> new InFile(
+              this.cassandra, "cmig/%s".formatted(name)
+            ).apply()
+          );
+      });
+    return shas.get(shas.size() - 1);
   }
 }

src/main/java/io/github/eocqrs/cmig/Preload.java

@@ -0,0 +1,83 @@
+/*
+ *  Copyright (c) 2023 Aliaksei Bialiauski, EO-CQRS
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.github.eocqrs.cmig;
+
+import io.github.eocqrs.cmig.check.CmigKeyspace;
+import io.github.eocqrs.cmig.check.StatesTable;
+import io.github.eocqrs.cmig.session.Cassandra;
+import io.github.eocqrs.cmig.session.InText;
+import org.cactoos.Scalar;
+
+/**
+ * Preload decorator for {@link Master}.
+ *
+ * @author Aliaksei Bialiauski ([email protected])
+ * @since 0.0.0
+ */
+public final class Preload implements Scalar<String> {
+
+  /**
+   * Scalar of Master.
+   */
+  private final Scalar<String> master;
+
+  /**
+   * Cassandra.
+   */
+  private final Cassandra cassandra;
+
+  /**
+   * Datacenter.
+   */
+  private final String datacenter;
+
+  /**
+   * Ctor.
+   *
+   * @param mstr Scalar of Master
+   * @param cs   Cassandra
+   * @param dc   Datacenter
+   */
+  public Preload(
+    final Scalar<String> mstr,
+    final Cassandra cs,
+    final String dc
+  ) {
+    this.master = mstr;
+    this.cassandra = cs;
+    this.datacenter = dc;
+  }
+
+  @Override
+  public String value() throws Exception {
+    new InText(
+      new CmigKeyspace(this.datacenter),
+      this.cassandra
+    ).apply();
+    new InText(
+      new StatesTable(),
+      this.cassandra
+    ).apply();
+    return this.master.value();
+  }
+}

src/main/java/io/github/eocqrs/cmig/check/CmigKeyspace.java

@@ -48,7 +48,7 @@ public CmigKeyspace(final String datacenter) {
 
   @Override
   public String asString() throws Exception {
-    return ("CREATE KEYSPACE cmig\n"
+    return ("CREATE KEYSPACE IF NOT EXISTS cmig\n"
             + "WITH REPLICATION = {\n"
             + "'class': 'NetworkTopologyStrategy',\n"
             + "'datacenter1': %s\n"

src/main/java/io/github/eocqrs/cmig/check/StatesTable.java

@@ -34,7 +34,7 @@ public final class StatesTable implements Text {
 
   @Override
   public String asString() throws Exception {
-    return "CREATE TABLE cmig.states\n"
+    return "CREATE TABLE IF NOT EXISTS cmig.states\n"
            + "(\n"
            + "id INT PRIMARY KEY,\n"
            + "author TEXT,\n"

src/main/java/io/github/eocqrs/cmig/session/InText.java

@@ -1,5 +1,6 @@
 package io.github.eocqrs.cmig.session;
 
+import lombok.SneakyThrows;
 import org.cactoos.Text;
 
 /**
@@ -34,8 +35,9 @@ public InText(
     this.cassandra = cssndr;
   }
 
+  @SneakyThrows
   @Override
-  public void apply() throws Exception {
+  public void apply() {
     this.cassandra.value().execute(
       this.text.asString()
     );

src/main/java/io/github/eocqrs/cmig/sha/ContentsOf.java

@@ -35,11 +35,6 @@
  */
 public final class ContentsOf implements Text {
 
-  /**
-   * CMIG directory.
-   */
-  private final String cmig;
-
   /**
    * File name.
    */
@@ -48,14 +43,11 @@ public final class ContentsOf implements Text {
   /**
    * Ctor.
    *
-   * @param cmg  CMIG directory
    * @param name File name
    */
   public ContentsOf(
-    final String cmg,
     final String name
   ) {
-    this.cmig = cmg;
     this.file = name;
   }
 
@@ -64,9 +56,8 @@ public ContentsOf(
   public String asString() {
     return new UnixizedOf(
       new ResourceOf(
-        "%s/%s"
+        "cmig/%s"
           .formatted(
-            this.cmig,
             this.file
           )
       )

src/main/java/io/github/eocqrs/cmig/sha/Sha.java

@@ -22,6 +22,7 @@
 
 package io.github.eocqrs.cmig.sha;
 
+import com.jcabi.xml.XML;
 import io.github.eocqrs.cmig.meta.Names;
 import lombok.SneakyThrows;
 import org.cactoos.Text;
@@ -46,29 +47,22 @@ public final class Sha implements Text {
   private final String id;
 
   /**
-   * Master file.
+   * Master XML.
    */
-  private final String master;
-
-  /**
-   * CMIG directory.
-   */
-  private final String cmig;
+  private final XML master;
 
   /**
    * Ctor.
-   * @param id State ID
-   * @param mst Master file
-   * @param cmg CMIG directory
+   *
+   * @param id  State ID
+   * @param mst Master XML
    */
   public Sha(
     final String id,
-    final String mst,
-    final String cmg
+    final XML mst
   ) {
     this.id = id;
     this.master = mst;
-    this.cmig = cmg;
   }
 
   @SneakyThrows
@@ -78,8 +72,7 @@ public String asString() {
       new Names(
         this.master,
         this.id
-      ),
-      this.cmig
+      )
     ).value();
     return new HexOf(
       new Sha256DigestOf(

src/main/java/io/github/eocqrs/cmig/sha/StateChanges.java

@@ -40,20 +40,13 @@ public final class StateChanges implements Scalar<List<String>> {
    */
   private final XpathList xpath;
 
-  /**
-   * CMIG directory.
-   */
-  private final String cmig;
-
   /**
    * Ctor.
    *
    * @param lst XPATH list
-   * @param cmg CMIG directory
    */
-  public StateChanges(final XpathList lst, final String cmg) {
+  public StateChanges(final XpathList lst) {
     this.xpath = lst;
-    this.cmig = cmg;
   }
 
   @Override
@@ -62,7 +55,7 @@ public List<String> value() throws Exception {
       .stream()
       .map(
         name ->
-          new ContentsOf(this.cmig, name).asString()
+          new ContentsOf(name).asString()
       ).toList();
   }
 }