DGXML classes refactoring

[appc.git] / appc-directed-graph / dg-loader / provider / src / main / java / org / onap / sdnc / dg / loader / DGXMLLoader.java

diff --git a/appc-directed-graph/dg-loader/provider/src/main/java/org/onap/sdnc/dg/loader/DGXMLLoader.java b/appc-directed-graph/dg-loader/provider/src/main/java/org/onap/sdnc/dg/loader/DGXMLLoader.java
new file mode 100644 (file)
index 0000000..c85b22d
--- /dev/null
+++ b/appc-directed-graph/dg-loader/provider/src/main/java/org/onap/sdnc/dg/loader/DGXMLLoader.java
@@ -0,0 +1,78 @@
+package org.onap.sdnc.dg.loader;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang.StringUtils;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.onap.ccsdk.sli.core.sli.SvcLogicParser;
+import org.onap.ccsdk.sli.core.sli.SvcLogicStore;
+import org.onap.ccsdk.sli.core.sli.SvcLogicStoreFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DGXMLLoader {
+
+    private static final Logger logger = LoggerFactory.getLogger(DGXMLLoader.class);
+    public static final String STRING_ENCODING = "utf-8";
+
+    private final SvcLogicStore store;
+
+    public DGXMLLoader(String propfile) throws DGXMLException, SvcLogicException {
+        if (StringUtils.isBlank(propfile)) {
+            throw new DGXMLException(propfile + " Profile file is not defined");
+        }
+        this.store = SvcLogicStoreFactory.getSvcLogicStore(propfile);
+    }
+
+    protected DGXMLLoader(SvcLogicStore store) {
+        this.store = store;
+    }
+
+    public void loadDGXMLFile(String dgXMLpath) throws SvcLogicException {
+        if (dgXMLpath != null) {
+            SvcLogicParser.load(dgXMLpath, this.store);
+        }
+    }
+
+    public void loadDGXMLDir(String xmlPath) {
+        try {
+            logger.info(
+                "******************** Loading DG into Database *****************************");
+            List<String> errors = new ArrayList<>();
+            if (this.store != null) {
+                File xmlDir = new File(xmlPath);
+                if (xmlDir.isDirectory()) {
+                    String[] extensions = new String[]{"xml", "XML"};
+                    List<File> files = (List<File>) FileUtils.listFiles(xmlDir, extensions, true);
+                    tryLoadXmls(errors, files);
+                } else {
+                    throw new DGXMLException(xmlPath + " is not a valid XML Directory");
+                }
+            } else {
+                throw new DGXMLException("Failed to initialise SvcLogicStore");
+            }
+
+            if (!errors.isEmpty()) {
+                throw new DGXMLException(errors.toString());
+            }
+        } catch (Exception e) {
+            logger.error("Failed to load DGXML directories", e);
+        }
+    }
+
+    private void tryLoadXmls(List<String> errors, List<File> files) throws IOException {
+        for (File file : files) {
+            logger.info("Loading DG XML file :" + file.getCanonicalPath());
+            try {
+                SvcLogicParser.load(file.getCanonicalPath(), store);
+            } catch (Exception e) {
+                logger.error("Failed to load XML " + file.getCanonicalPath(), e);
+                errors.add("Failed to load XML " + file.getCanonicalPath()
+                    + ", Exception : " + e.getMessage());
+            }
+        }
+    }
+}