package org.mxchange.pizzaapplication.database.frontend.product;
import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.MessageFormat;
import java.util.Iterator;
+import java.util.Map;
import org.mxchange.jcore.criteria.searchable.SearchCriteria;
-import org.mxchange.jcore.criteria.searchable.SearchableCritera;
+import org.mxchange.jcore.criteria.searchable.SearchableCriteria;
import org.mxchange.jcore.database.frontend.BaseDatabaseFrontend;
+import org.mxchange.jcore.database.result.DatabaseResult;
import org.mxchange.jcore.database.result.Result;
import org.mxchange.jcore.database.storage.Storeable;
import org.mxchange.jcore.exceptions.BadTokenException;
+import org.mxchange.jcore.exceptions.CorruptedDatabaseFileException;
import org.mxchange.jcore.exceptions.UnsupportedDatabaseBackendException;
import org.mxchange.pizzaapplication.database.product.PizzaProductDatabaseConstants;
import org.mxchange.pizzaapplication.product.Product;
+import org.mxchange.pizzaapplication.product.pizza.PizzaProduct;
/**
* Stores and retrieves Contact instances
this.initBackend();
}
+ /**
+ * Adds product to database by given title, price and category id
+ * @param title Product title
+ * @param price Product price
+ * @param category Product category id
+ * @param available Availability of product (selectable by customer)
+ * @throws java.sql.SQLException If any SQL errors occur
+ */
+ @Override
+ public void addProduct (final String title, final Float price, final Long category, final Boolean available) throws SQLException, IOException {
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("title={0},price={1},category={2} - CALLED!", title, price, category)); //NOI18N
+
+ // Title should not be null
+ if (title == null) {
+ // Abort here
+ throw new NullPointerException("title is null"); //NOI18N
+ } else if (price == null) {
+ // Abort here
+ throw new NullPointerException("price is null"); //NOI18N
+ } else if (category == null) {
+ // Abort here
+ throw new NullPointerException("category is null"); //NOI18N
+ } else if (available == null) {
+ // Abort here
+ throw new NullPointerException("available is null"); //NOI18N
+ }
+
+ // Clear dataset from previous usage
+ this.clearDataSet();
+
+ // Add title and parent
+ this.addToDataSet(PizzaProductDatabaseConstants.COLUMN_TITLE, title);
+ this.addToDataSet(PizzaProductDatabaseConstants.COLUMN_PRICE, price);
+ this.addToDataSet(PizzaProductDatabaseConstants.COLUMN_CATEGORY, category);
+ this.addToDataSet(PizzaProductDatabaseConstants.COLUMN_AVAILABLE, available);
+
+ // Handle this over to the backend
+ // @todo Nothing is done yet!
+ Result<? extends Storeable> result = this.doInsertDataSet();
+
+ // Debug message
+ this.getLogger().debug(MessageFormat.format("result={0}", result)); //NOI18N
+
+ // Trace message
+ this.getLogger().trace("EXIT!"); //NOI18N
+ }
+
/**
* Shuts down the database layer
*
this.getLogger().trace("EXIT!"); //NOI18N
}
+ /**
+ * Depending on column, an empty value may be converted to null
+ *
+ * @param key Key to check
+ * @param value Value to check
+ * @return Possible previous value or null
+ */
+ @Override
+ public Object emptyStringToNull (final String key, final Object value) {
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("key={0},value={1} - CALLED!", key, value)); //NOI18N
+
+ // Copy value
+ Object v = value;
+
+ // Is the value empty?
+ if ((value instanceof String) && ("".equals(value))) { //NOI18N
+ // This value may need to be changed
+ switch (key) {
+ }
+ }
+
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("v={0} - EXIT!", v)); //NOI18N
+
+ // Return it
+ return v;
+ }
+
/**
* An iterator on all products
*
* @return Iterator on all products
- * @throws org.mxchange.jcore.exceptions.BadTokenException
* @throws java.io.IOException If any IO error occurs
+ * @throws org.mxchange.jcore.exceptions.BadTokenException If a bad token was found in a file-based database backend's file ... ;-)
+ * @throws java.sql.SQLException If any SQL errors occur
*/
@Override
@SuppressWarnings ("unchecked")
- public Iterator<Product> getProducts () throws IOException, BadTokenException {
+ public Iterator<Product> getAllProducts () throws IOException, BadTokenException, SQLException, CorruptedDatabaseFileException, NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
+ // Trace message
+ this.getLogger().trace("CALLED!"); //NOI18N
+
+ // Instance search criteria
+ SearchableCriteria critera = new SearchCriteria();
+
+ // Run the query
+ Result<? extends Storeable> result = this.getBackend().doSelectByCriteria(critera);
+
+ // Debug message
+ this.getLogger().debug(MessageFormat.format("result={0}", result)); //NOI18N
+
+ // Get iterator
+ Iterator<?> iterator = result.iterator();
+
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("iterator={0} - EXIT!", iterator)); //NOI18N
+
+ // Get iterator and return it
+ return (Iterator<Product>) iterator;
+ }
+
+ @Override
+ @SuppressWarnings ("unchecked")
+ public Iterator<Product> getAvailableProducts () throws IOException, BadTokenException, SQLException, CorruptedDatabaseFileException, NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
// Trace message
this.getLogger().trace("CALLED!"); //NOI18N
// Instance search criteria
- SearchableCritera critera = new SearchCriteria();
+ SearchableCriteria critera = new SearchCriteria();
// Add criteria
critera.addCriteria(PizzaProductDatabaseConstants.COLUMN_AVAILABLE, true);
-
+
// Run the query
Result<? extends Storeable> result = this.getBackend().doSelectByCriteria(critera);
return (Iterator<Product>) iterator;
}
+ @Override
+ public String getIdName () {
+ // Return column id
+ return PizzaProductDatabaseConstants.COLUMN_ID;
+ }
+
/**
- * Parses given line from database backend into a Storeable instance. Please
- * note that not all backends need this.
+ * Gets a Result back from given ResultSet instance
*
- * @param line Line from database backend
- * @return A Storeable instance
+ * @param resultSet ResultSet instance from SQL driver
+ * @return A typorized Result instance
+ * @throws java.sql.SQLException If any SQL error occurs
*/
@Override
- public Storeable parseLineToStoreable (final String line) throws BadTokenException {
+ public Result<? extends Storeable> getResultFromSet (final ResultSet resultSet) throws SQLException {
// Trace message
- this.getLogger().trace(MessageFormat.format("line={0} - CALLED!", line)); //NOI18N
+ this.getLogger().trace(MessageFormat.format("resultSet={0} - CALLED!", resultSet)); //NOI18N
- // Call inner method
- Product product = this.parseLineToProduct(line);
+ // Init result instance
+ Result<? extends Storeable> result = new DatabaseResult();
- // Debug message
- this.getLogger().trace(MessageFormat.format("product={0} - EXIT!", product)); //NOI18N
+ // Reset result set before first row
+ resultSet.beforeFirst();
+
+ // "Walk" through all entries
+ while (resultSet.next()) {
+ // Get id, title and parent id
+ Long id = resultSet.getLong(PizzaProductDatabaseConstants.COLUMN_ID);
+ String title = resultSet.getString(PizzaProductDatabaseConstants.COLUMN_TITLE);
+ Float price = resultSet.getFloat(PizzaProductDatabaseConstants.COLUMN_PRICE);
+ Long category = resultSet.getLong(PizzaProductDatabaseConstants.COLUMN_CATEGORY);
+ Boolean available = resultSet.getBoolean(PizzaProductDatabaseConstants.COLUMN_AVAILABLE);
+
+ // Debug message
+ this.getLogger().debug(MessageFormat.format("id={0},title={1},category={2},available={3}", id, title, category, available)); //NOI18N
+ // Instance new object
+ Product product = new PizzaProduct(id, title, price, category, available);
+
+ // Debug log
+ this.getLogger().debug(MessageFormat.format("product={0}", product)); //NOI18N
+
+ // Add it to result
+ result.add(product);
+ }
+
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("result({0})={1} - EXIT!", result.size(), result)); //NOI18N
+
+ // Return result
+ return result;
+ }
+
+ @Override
+ public Storeable getStoreableAtRow (final int rowIndex) {
+ throw new UnsupportedOperationException("Not supported yet: rowIndex=" + rowIndex);
+ }
+
+ /**
+ * Checks wether the given product title is already used.
+ *
+ * @param title Product title
+ * @return Whether the product title is already used
+ * @throws java.io.IOException If any IO error occurs
+ * @throws org.mxchange.jcore.exceptions.BadTokenException If a bad token was found in a file-based database backend's file ... ;-)
+ * @throws java.sql.SQLException If any SQL errors occur
+ */
+ @Override
+ public boolean isProductTitleUsed (String title) throws IOException, SQLException, BadTokenException, CorruptedDatabaseFileException, NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("title={0} - CALLED!", title)); //NOI18N
+
+ // Get search criteria
+ SearchableCriteria criteria = new SearchCriteria();
+
+ // Add criteria
+ criteria.addCriteria(PizzaProductDatabaseConstants.COLUMN_TITLE, title);
+
+ // Only one entry is find
+ criteria.setLimit(1);
+
+ // Run it on backend
+ Result<? extends Storeable> result = this.getBackend().doSelectByCriteria(criteria);
+
+ // Debug log
+ this.getLogger().debug(MessageFormat.format("result({0}={1}", result, result.size())); //NOI18N
+
+ // Now check size of the result
+ boolean isFound = (result.size() == 1);
+
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("isFound={0} - EXIT!", isFound)); //NOI18N
+
// Return it
- return product;
+ return isFound;
}
/**
- * Parses given line to a Product instance
+ * Converts the given map into a Storeable instance, depending on which class implements it. All
+ * keys are being interpreted as class fields/attributes and their respective setters are being searched for. As
+ * this method may fail to find one or access it, this method throws some exception.
*
- * @param line
- * @return A Product instance from given line
+ * @param map Map instance to convert to Storeable
+ * @return An instance of a Storeable implementation
*/
- private Product parseLineToProduct (final String line) {
- throw new UnsupportedOperationException(MessageFormat.format("Not supported yet: line={0}", line)); //NOI18N
+ @Override
+ public Storeable toStoreable (final Map<String, String> map) throws NoSuchMethodException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("map={0} - CALLED!", map)); //NOI18N
+
+ // Is map null?
+ if (map == null) {
+ // Is null
+ throw new NullPointerException("map is null"); //NOI18N
+ } else if (map.isEmpty()) {
+ // Map is empty
+ throw new IllegalArgumentException("map is empty."); //NOI18N
+ }
+
+ // Debug message
+ this.getLogger().debug(MessageFormat.format("Has to handle {0} entries", map.size())); //NOI18N
+
+ // Get iterator on all entries
+ Iterator<Map.Entry<String, String>> iterator = map.entrySet().iterator();
+
+ // Init object instance
+ Storeable instance = new PizzaProduct();
+
+ // Iterate over all
+ while (iterator.hasNext()) {
+ // Get next entry
+ Map.Entry<String, String> entry = iterator.next();
+
+ // Debug message
+ this.getLogger().debug(MessageFormat.format("entry:{0}={1}", entry.getKey(), entry.getValue())); //NOI18N
+
+ // Try to set value
+ instance.setValueFromColumn(entry.getKey(), entry.getValue());
+ }
+
+ // Trace message
+ this.getLogger().trace(MessageFormat.format("instance={0} - EXIT!", instance)); //NOI18N
+
+ // Return it
+ return instance;
}
}
projects / pizzaservice-war.git / blobdiff